home Aquarium How to wash off green plaque in an aquarium

How to wash off green plaque in an aquarium

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Green algae in an aquarium: causes of appearance, methods of control and prevention

A modern aquarium is not only a habitat for fish, but also a thing that decorates the interior of a room. For this reason, absolutely all owners are trying to maintain its impeccable appearance. Nevertheless, even with careful maintenance, the walls of an artificial reservoir can become covered with a strange green coating. You should know what kind of plaque it is, why it appears, and how to remove it.


This method is partially used during a biological procedure, but some are adopting it as a single measure. As an addition, you can heed a few helpful tips:

  • do not use sponges and scrapers that have already been used for cleaning: they contain bacteria, both useful and harmful;
  • be sure to protect your hands with gloves;
  • if plaque is difficult to wash off, try prying it off with a blade or remove it with an aquarium scraper;
  • if the decorations cannot be washed, dilute a small amount of bleach in water, soak them in it for about 15 minutes, and then rinse with boiling water.


This method is suitable for those who need to return the proper form to the aquarium in a short time. One of the most popular drugs is streptomycin. To use it, you need to boil water, and then dilute the powder in a small amount (3 g of medicine per 1 liter of liquid). The resulting mixture is run into a filter. Streptomycin acts quite quickly, and after a couple of days the walls of the container will be completely cleansed. Fish of such interference, as a rule, do not notice.

It should be remembered that during treatment it is impossible to do additional cleaning with activated carbon. And you will also have to promptly remove the remnants of algae so that they do not rot and spoil the ecosystem of the reservoir.


This is the simplest and most natural method of dealing with an ailment at home, you only need to show a little patience.

It is reliably known that algae actively reproduce for only 21 days, after which new cells do not appear, and the old ones begin to die off. This means that the aquarium must be left alone for 3 weeks, after which the plaque will lighten and can be quickly cleaned.

This technique will be slightly different in low tech and high tech aquariums. If the aquarium is low-tech (without an additional carbon dioxide supply system), then you need:

  • clean the tank well;
  • make a water change (30%);
  • do not add fertilizer or change water 21 days.

If the aquarium is high-tech, the water is not changed, but fertilizers continue to be applied, as they are needed for the plants. However, their number should be reduced by 25%. After 3 weeks, the tank will need to be cleaned. They do it as follows:

  • all inhabitants are temporarily moved to another container;
  • they clean glass surfaces with a hard sponge, completely removing plaque;
  • pour out the water;
  • thoroughly clean the scenery, loosen the soil, then process it with a pump to remove all unnecessary particles;
  • wash the aquarium outside;
  • fill in new water, start up the aquarium and set up all systems;
  • when the parameters of the water and temperatures return to normal, start the fish.

Why appear?

The appearance of green plaque is an issue that is still being studied today, so there are quite a few opinions here. We will highlight the most basic and most likely.

  • Problems with fast growing plants. There are several options here: there are too few such plants, they do not exist at all, or they have slowed down growth. Because of this, the nutrients with which the aquarium is saturated are the cause of the growth of algae.
  • A large amount of phosphorus combined with a small amount of nitrogen. This becomes the reason for the rapid reproduction of the protococcus, and the aquarium is literally overgrown with greenery.
  • Incorrect tank placement. Experienced aquarists know that no aquarium can withstand constant sunlight, but beginners, on the contrary, mistakenly believe that fish need a lot of natural light. Direct sunlight causes algae to appear in the aquarium.
  • Violation of the temperature balance. Depending on the type of fish contained in the tank, a certain temperature must be set in it. If fluctuations occur in one direction or another, this provokes the reproduction of algae, as well as diseases and poor health of the fish.
  • Poor care. This refers to a rare cleaning. Even with modern cleaning systems, you always have to control the cleanliness level yourself. The fish may not eat up the food, it will fall to the bottom and rot. In addition, fish waste also sinks down and creates an excellent habitat for algae.
  • Increased salt concentration. If you rarely change the water, do not defend it, or have recently treated your fish with salt treatment, this may very well be another reason why the aquarium is suddenly green.

It is very important to note that algae rarely begin to multiply due to any one factor. Basically, this process provokes a combination of reasons.

What it is?

Sometimes the slightest change in the appearance of the aquarium makes the owner panic, especially if the prerequisites for such changes were not observed. Green bloom occurs gradually, and it comes from a special type of algae that is always in the aquarium. These algae are called protococcus and xenococcus. Most of the time of their existence, they are harmless, and the green plaque obtained in the process of their vital activity is removed relatively easily by hand, or it is eaten by snails and bottom catfish.

However, if the ecosystem in the reservoir is disturbed, algae begin to multiply rapidly, and this leads to a variety of problems. Protococcus forms green dust that settles on glass and also covers the water surface. In advanced cases, nothing can be seen through the glass, and the wiped plaque appears again after a few days.

As for xenococcus, they parasitize on plant leaves, appearing in the form of dots. It is extremely difficult to remove overgrown spots, you have to tear off whole leaves. If you ignore the xenococcus, it will “bring” new inhabitants.

The water reservoir will become a place of residence for more dangerous algae, for example, thread, which will cover not only plants and glass with fluff and fibers, but also stones and aquarium decorations. This will serve as a starting point for the spread of the fungus parasitizing on the bottom of stones, stems, moss.

Such organisms can already be considered dangerous as they will affect the quality of the water and the health of the fish or other inhabitants of the aquarium.

How to fight?

To get rid of the brilliant green, so spoiling the appearance of the aquarium, experts suggest using one of the following methods.

Green dots on the walls of the aquarium. how to get rid of xenoccus

Green dots on the sides of the aquarium are actually not the worst problem. But this is the first bell that warns of the approach of serious trouble. When the water system is out of balance. green dots appear on the walls of the aquarium.

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Such spots are formed as a result of the growth of unicellular colonial algae of the genus Xenococcus sp., Which belong to the department Chlorophyta.

Reasons for the appearance of green dots on the walls of the aquarium

The main reason for the appearance of green dots in the aquarium. this is a lack of phosphorus. If there is a lack of phosphorus, the growth of aquarium plants stops. In addition, without phosphorus, they cannot assimilate nitrogen and nitrates accumulate in the aquarium. And if the aquarium is also sufficiently illuminated, then the appearance of a xenococus will not keep you waiting long.

Lack of phosphorus begins in a new aquarium, 1.5-2 months after planting. This is a signal that it is time to start applying macrofertilizers or feed the fish more (there is also phosphorus in the feed).

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If the plants show a lack of phosphorus in an old aquarium, then the problem is most likely a fertilizer (macro). Either they are not applied enough, or the NO3: PO4 ratio is not suitable for you and you need to change the manufacturer.

Also, the growth of aquarium plants can stop when the level of carbon dioxide in the aquarium reaches a minimum of 4 mg / l. But it is enough for the growth of algae. And in combination with a good level of light. even such slow algae as xenocoke will prevail over plants.

For most aquarium plants, daylight hours are 9-10 hours a day. After this time, they fall asleep and do not use the energy of light. For unicellular algae, daylight hours are not standardized. Therefore, the longer it is, the more intensive their growth. Thus, if the light is on for more than 10 hours a day in the aquarium, then green dots on the glass of the aquarium will inevitably appear.

The next moment. lighting intensity. Each type of aquarium plant requires a certain amount of light to grow optimally. Maksimov’s Farm uses the appropriate designations on plant tags.

So, if the light intensity significantly exceeds the optimal level, then the growth of this species will be inhibited. For example, green dots on anubias appear under illumination of more than 0.5 W / L. After all, these are shade-loving species and in such conditions they must be darkened.

Symptoms of the manifestation of xenoccus in the aquarium

A characteristic feature of the xenococus in the aquarium. the formation of green dots on the walls of the aquarium, the leaves of slow-growing plants, stones and decorations. It should be noted that these algae are always present in the aquarium. But they notice them only when their uncontrolled growth begins.

The growth rate of the xenococus is very low in comparison with other species. Therefore, it practically, never infects long-stemmed aquarium plants. But slow-growing species, such as anubias, can be severely affected. Especially if plant growth has stopped for some reason.

In a neglected state, the points continue to grow and form rounded spots, up to 0.5 cm in diameter. Such spots are very hard to the touch, rough. They are removed from glass and decorations with difficulty. And from aquarium plants, they can only be removed together with a leaf.

Following the xenochocus, other types of algae usually appear in the aquarium: green, filamentous, etc. And they will add more difficult problems. Therefore, it is important to take timely measures to stabilize the aquarium.

How to get rid of xenoccus in an aquarium

If green dots have just begun to appear in the aquarium and have not greatly harmed its general condition, then in order to get rid of the xenoccus, you need to do the following:

Adjust lighting. The length of daylight hours should be set at 10 hours a day, and the light intensity should correspond to the species composition.

If light-loving and shade-loving plants are planted in the same aquarium, then with the help of the first ones you need to darken the second.

HOW TO Remove Algae in SECONDS!

Start applying macrofertilizers at the rate of 0.5-1.5 mg / l PO4. In some cases, you can simply add KH2PO4 or KH (PO4) 2 from the same calculation for PO4, but this can cause an imbalance of NO3: PO4. Therefore, we recommend complex macrofertilizers.

Regular water changes: 20-30% weekly. This will allow you to adjust the balance of macrofertilizers, as well as help to avoid overdose.

Cleaners such as Ottocinculus affinis and Teodocsus snails feed on green algae and can significantly help get rid of xenoccus in an aquarium.

It is also necessary to regularly remove green dots where possible, without giving them the opportunity to firmly gain a foothold.

In most cases, these steps will be sufficient. But if the situation gets out of control and green dots on the leaves of aquarium plants clearly inhibit their growth. better use radical methods.

We include the use of algicides among such radical methods. Green algae (which includes xenocokus) are very sensitive to algaecids. Therefore, you can get rid of them by making minimal doses of almost any manufacturer. Be sure to strictly follow the instructions.

Remember that algaecides treat symptoms, not causes. Therefore, it is imperative to follow the steps listed above to stabilize the system and prevent the appearance of xenoccus in the aquarium again.

Green bloom on the walls of the aquarium. we get rid once and for all

Dusty green bloom on the wall of the aquarium is certainly not a pleasant phenomenon, but the most harmless one. After all, only the glasses turn green. Plants and even decorations stay clean. Discomfort is felt only by the owner of the aquarium, not its inhabitants.

It occurs in the case of active reproduction of unicellular green algae Protococcus, aka Chlorococcum. In foreign literature, this phenomenon is called Green Dust Algae.

Symptoms of the manifestation of Protococcus in the aquarium

It should be noted that Protococcus is always present in the aquarium. This is part of his microflora. The appearance of a small green bloom on the wall of the aquarium in 1.5-2 weeks in a well-lit aquarium. this is the norm. It looks like a cloudy front glass and can be easily removed with a soft sponge.

BUT. If there is a confluence of certain factors, the reproduction process goes into an active phase. At the same time, already in three days, a dense dusty deposit on the walls of the aquarium is so strong that it is impossible to see the contents through the front glass. It usually appears as a large spot or band at the top of the sight glass. In severe cases, the glass turns green completely. Such plaque is still easily erased, but appears again in a couple of days.

Vegetative reproduction of Protococcus occurs as a result of division and is not dangerous, since this process is slow. But asexual is carried out using zoospores. In this case, 8-32 zoospores are formed from one cell, which float in the water column, cling to a smooth surface (glass) and the process is repeated again.

It is important not to confuse protococcus with other species. If the plaque grows tightly into the glass, it is difficult to remove and forms rounded spots. most likely it is xenococcus. And if dust forms on the leaves of plants and on the entire contents of the aquarium. diatoms. Protococcus. green slippery dust on the glass of the aquarium, which is easy to remove and does not damage plants.

The reasons for the appearance of green plaque on the wall of the aquarium

There is a lot of controversy and reflection on the forums about the reasons for the appearance of green dust on the glass of the aquarium. However, this issue has been poorly studied. It is known that such plaque can suddenly appear in both new and long-established aquariums.

In this article, we decided to share our personal experience. According to our observations, Green Dust Algae appears in those aquariums where there are either no fast-growing plants, or their number is insufficient. Or the growth of plants has stopped for some reason (strong pruning, lack of some nutrient). That is, in such aquariums there are a lot of nutrients, but there is no one to eat them.

One more point. it is a high concentration of phosphorus (0.8 g / l) at a low concentration of nitrogen (27C).

Foreign authors indicate that green plaque on the walls appears as a result of an increase in the total concentration of salts in water. Indeed, after the treatment of fish with rock salt, glasses very often turn green.

The growth of Green Dust Algae is driven by a group of factors, not one of them.

How to get rid of green plaque on the walls of the aquarium

We figured out the reasons, but how to deal with Protococcus? In fact, the solution has long been described on many resources. The problem is that many aquarists don’t like it 🙂

In order to get rid of the green dusty deposits, you just need to give the algae the opportunity to complete the breeding cycle. In Protococcus, the cycle of asexual reproduction by zoospores takes 21 days. During this time, the zoospores completely settle on the glass and become cells. During this time, the plaque brightens (fades) and begins to die off.

Attention! Low-tech aquariums (without additional supply of carbon dioxide) can simply be left alone for 21 days, after a general cleaning and a 30% water change. During this time, no changes are made, no fertilizers are applied.

But if you do the same with a high-tech aquarium, then most likely the plants will not survive this. Therefore, if an additional supply of carbon dioxide is used, the schedule of fertilization and water changes does not change. You can reduce the application of macrofertilizers by 25%. The main thing is not to clean the glass, no matter how you would like.

After the expiration of the specified period, the glass must be cleaned with a scraper, and the dead algae residues must be collected with a hose with a water change. It is also necessary to analyze the possible causes of the appearance of green plaque in the aquarium and eliminate them. If you have patience and wait for the specified period. You can easily get rid of Protococcus in the aquarium. Otherwise, you will have to unsuccessfully clean the glass from plaque for months.

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Green bloom on the walls

The green plaque that forms on the walls is called xenocacus. Because of it, the walls and decorations are covered with an unpleasant shade. Xenococus reproduces when exposed to excess light, so this problem most often occurs in aquariums with excessive lighting. Limit light output to 5 watts per liter of water.

The second most important reason can be considered a lack of oxygen or more jumps in indicators during the day. If this is not the first time you have encountered this problem, then consider purchasing type H controllers. However, it is unlikely that it will be possible to protect yourself from this phenomenon forever, but it is quite possible to slow down.

Prevention in the appearance of green plaque:

  • Oxygen regulation;
  • Lighting limitation to 8 hours;
  • Reducing the intensity of lighting;
  • Establishment of theodoxus snails, nat, coils, ancistrus and ototsinklus.

It is not recommended to resort to chemicals to clean the aquarium only if the situation becomes threatening for all inhabitants.

The big problem is green plaque in the aquarium

A well-kept aquarium is the real pride of the aquarist and an excellent addition to the interior design of the room. However, it happens that the aquarium practically captures the green bloom. How to cleanse your aquarium of this scourge?

The emergence of such a problem signals an imbalance in the ecosystem. In this case, plaque can appear in different shades, and have a variety of dislocations. Before deciding to fight it, it is important to determine the true reasons for the settlement of pathogenic algae in the bowels of an artificial reservoir.

Cause There is a large amount of food that the fish do not have time to eat

Often, with proper lighting and thermal conditions, algae still actively develop. This process causes rotting food to accumulate at the bottom. Several recommendations will help you control its amount:

  • Pour in an adequate amount of food. On average, if the fish eat the received dose of food in 15-20 minutes, then you are feeding them correctly.
  • Put fish on a diet once a week. Don’t feed them. They easily endure a hunger strike and even recover.
  • Buy proven food. If the fish do not eat the one you give them, then maybe it is expired or made from low-quality ingredients.
  • It is advisable that you have fish living in the same aquarium that prefer one type of food.


At this stage, it is time to pour in clean water. The water must be standing or filtered. Change the water taking into account the following factors:

  • The water should be at a temperature suitable for the life of the fish. Water that is too warm or too cold can make your fish sick. Control the temperature with a special water thermometer.
  • If your tap water is too hard, replace 60% of your water with distilled water. Only experts warn that such water may be too clean for your fish, and this can also adversely affect health.
  • Pour in water slowly to avoid damaging the ground and decorations.
  • When you have poured all the water. wait a couple of hours, all the particles that have risen should settle and the water should brighten.
  • If the water remains cloudy, this indicates that some problem remains unresolved. We need to eliminate it.
  • When pouring in water, leave space between the water and the lid of the aquarium. This is necessary for the proper circulation of oxygen and carbon dioxide. The fish also need to somehow straighten their dorsal fins.

Note: If your fish are healthy and you maintain a healthy aquarium microclimate, then you should only need to change 10-20% of the water weekly. Change all water or 50-75% if you have sick specimens.

Home aquarium cleaning instructions

An aquarium can decorate your home, and fish have a positive effect on the nervous system. Fish and turtles need to be fed, looked after, and cleaned in a timely manner. The condition of pets depends on this. In the question of how to clean an aquarium at home and how often it needs to be done, you should understand in more detail.

The question of how to properly clean the aquarium has been repeatedly asked by the owners of fish, turtles, in whose life a glass aquarium has appeared recently. How to properly wash the aquarium and in what sequence we will talk in more detail.

First, you need to wash the walls from limescale, from greens that have adhered to the glass. Greens are algae that are harmless to fish, waterfowl turtles, but worsen the appearance of the aquarium.

You can clean the glass walls from green plaque with your own hands in 2 ways:

You can remove green plaque with scrapers:

  • With a metal blade.
  • Magnetic.

Used to remove green plaque in glass tank for turtles, fish magnetic scraper. It gently cleans the glass surface.

Cause Incorrect light mode

Ill-conceived light placement and prolonged exposure can cause algae growth. Consider these recommendations so that you no longer wonder how to remove green plaque from the aquarium:

  • In summer, the aquarium should be lit for no more than 12 hours a day.
  • In winter, the lighting time is significantly reduced. from 7-10 hours a day.
  • Use artificial lamps to illuminate the aquarium.
  • Watch the intensity of the light. Algae grows quickly in bright light as the water in the aquarium can get hot.


Now you need to clean the outside of the aquarium. To do this, use a special aquarium cleaner or prepare a solution of wine vinegar. The instructions for high-quality cleaning are as follows:

  • Take a clean sponge or rag.
  • Moisten with the agent of choice.
  • Wipe down all external items including lamp, glass and cover.

to the content

Varieties of popular algae

Of course, all algae should not be equated. Each type has its own types of struggle. Sometimes it happens that the conditions optimal for eliminating one algae act with the opposite effect on another. You can often hear about the appearance of filamentous algae.

  • Edogonium. At the very beginning, it can be compared to a green fluff that appears on all horizontal surfaces. Appears mainly due to lack of macronutrients. To eliminate it, it is worth introducing the missing nitrates and phosphates into the soil. With an emergency treatment of the aquarium at the initial stage, recovery occurs within a week. For a neglected case, use additionally AQUAYER Algo Shock. To prevent reappearance, add algae eaters (shrimp or fish) to your pets.
  • Cladophorus. Algae is like a thread with a branched structure. Cladophora appears even in those aquariums where fertilization is systematically applied. Most often, the cause of its occurrence is poor water circulation, the presence of stagnation zones. Most often, they eliminate it physically, that is, by cleaning the aquarium with your hands. To kill spores, add Algo Shock carefully following the instructions.
  • Spirogyra. The main problem is that plants are not able to cope with it. In a couple of days, it can cover the entire aquarium, including the walls. If you touch the spirogyra thread, it is very slippery and thin, easily rubbed between your fingers. The only way to fight is the introduction of AQUAYER Algo Shock. In this case, it is important to mechanically clean the aquarium from the appearance of new threads. Try to scrape it out of there as often as possible. It is important to limit your lighting as this is the main reason it appears. It will not be superfluous to establish algae-eating fish for prevention.
  • Rizoclonium. The main reason for the appearance is the incorrect start of the aquarium. In it, as a rule, the nitrogen cycle has not yet had time to establish, which leads to an increase in the level of ammonium. Set the nitrogen cycle and the algae will disappear by themselves. Do a ½ water change every week. In extreme cases, you can use the AQUAYER preparation AlgicideCO2, but this is not necessary at all.

How to remove algae from rocks and decorations in your aquarium

Every aquarium owner has tried brushing off annoying green, diatom, blue-green and other algae from the stones. The process is quite long and painstaking. It will be much easier to use the well-known “Whiteness”. Dilute warm (even hot) water with whiteness in a ratio of 10: 1.

Then leave the stones in this liquid for 1-2 hours. You will be surprised at the result you get. Your decorations will be completely free of all dirt. If there is a lot of plaque initially, it is recommended that you first clean the stones a little with a sponge or toothbrush.

It is important that after such a procedure, a good rinsing of the decor is required under running water. This should be done until the chlorine smell disappears (more than an hour).

The above method is very effective, even sandstone will become “like new” as a result. But it is not suitable for all types of decoration. For example, white spots may appear on dark stones. Also, using whiteness, you cannot clean driftwood, clay and silicone products. They are usually cleaned under running water with a stiff brush.

For stubborn dirt, baking soda can also be used. To do this, you need to apply in any convenient way (best of all with a toothbrush) soda on the damp decor so that it looks like it is “covered with porridge”. Leave for 20-30 minutes, then rinse with warm water. You can brush lightly to remove any remaining plaque.

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Sometimes, due to these cleaning methods, a certain amount of algae still remains on the decorations. Don’t worry about this. After the decor is immersed back into the aquarium over the next few days, the green plaque will surely disappear by itself.

One of the safest ways to clean your decorations is to soak them in a hydrogen peroxide solution. 100 ml of 30% peroxide is diluted with 100 liters of water. It is necessary to place the items that need to be cleaned there and leave for 20-30 minutes. Then rinse well under warm water.

Unfortunately, it will be quite problematic to soak a large decoration with an embossed background. Therefore, to remove algae, you need to use a regular dishwashing brush with a sufficiently soft bristle so as not to damage the decoration. For faster cleaning, you can use salt or baking soda.

After that, be sure to rinse well. It should be borne in mind that it is not possible to clean out all plaque in 5 minutes, you need to be patient and do everything efficiently.

Also, for this purpose, you can get catfish such as ancistrus, sturis or ototsinklus, which will promptly clean the scenery from algae, preventing them from growing.

Of course, it is much easier to prevent the occurrence of a problem than to deal with the consequences. To do this, you need to follow a few very easy rules:

➤ The aquarium should be lit for no more than 12 hours a day, and it is advisable to avoid direct sunlight

➤ Only buy specially designed lamps for your aquarium

➤ Carry out regular water changes (10-25% depending on the volume of the aquarium).

➤ Self-collected stones must first be boiled in water. Then rinse under running water with a brush.

➤ All decorations can be treated with Collar NanoClear before immersion in the aquarium. which will protect them from the appearance of algae for a sufficiently long time (about 2 years)

How to clean artificial aquarium plants

There are several effective and safe cleaning methods.

The methods have been tested by generations of aquarists and, subject to the technology and proportion of the cleaning solution, you will not harm the aquarium and fish.

One of the most popular ways is to use boiling water.

Hot water kills algae build-up and decorations can be easily cleaned.

Try to use this method as it does no harm to the fish.

But work with a scraper or a hard toothbrush is indispensable.

  • Boil water
  • Putting artificial plants and decorations in boiling water
  • We are waiting for 10-15 minutes
  • We clean with a scraper or brush from algae and plaque
  • Putting back into the aquarium

Cleaning aquarium artificial plants with hydrogen peroxide

It is a safer way to clean than using chlorine bleach.

Even if you don’t rinse well, and hydrogen peroxide gets into the aquarium, it will quickly decompose into safe hydrogen and oxygen.

  • Dilute a solution of 2-2.5 ml per 10 liters of water
  • Place decorations and artificial plants in the prepared solution
  • Leave on for 20-30 minutes
  • Rinse well with running water

Be aware that hydrogen peroxide is often added to the aquarium to kill lower algae and plaque caused by them.

How to get rid of all types of algae in SECONDS in your aquarium!

How to remove algae and plaque from artificial aquarium plants and decorations

Beginners love artificial aquarium plants and decorations. They think it’s easier with them than with living plants.

I suppose you have already managed to make sure of the incorrectness of this statement personally, since you are reading this article.

Artificial plants in the aquarium are also susceptible to algae growth and bloom with the only difference from living ones.

Plaque and algae will not harm artificial plants or decorations, but will degrade the appearance.

A matter of time when you are faced with the need to clean them.

Never clean plastic or silk plants and decorations with toxic cleaning agents without thorough rinsing with running water.

By placing well-cleaned, but poorly washed decorations and plants, you will see the rapid death of fish in the aquarium.

And the smaller the aquarium, the more fatal the consequences will be from poorly washed decorations and artificial plants.

After I scared you a little, you can go to the description of the process.

How to clean silk artificial aquarium plants

The cleaning procedure for silk plants combines cleaning with boiling water and a cleaning agent that you will need to prepare yourself.

  • Rinse silk plants thoroughly in hot water
  • Make a paste using a mixture of non-iodized salt and lemon juice
  • Using a toothbrush, apply the prepared paste to the silk decor and scrub away plaque and algae
  • Rinse in hot running water

Safe cleaning of aquarium plants and decorations with bleach

Very often, aquarists use chlorine bleaches to remove stubborn deposits, dirt and algae.

  • Mix 1 part bleach and 9 parts pure water to make a 10% solution
  • Soak decorations or artificial plants in the solution for 15 minutes
  • After the bleach solution, place the decorations in plain water for 15 minutes.
  • Rinse thoroughly in running water

Any chlorine bleach, like the well-known “Whiteness”, is suitable for this.

Chlorine bleach can partially discolor artificial aquarium plants, which indicates a low quality product.

High-quality plastic aquarium plants are coated with a special varnish that easily withstands the effects of chlorine bleach.

Do not mix bleach with other cleaning agents to create a harsher mixture.

A chlorine neutralizer can be used before rinsing in water.

Tips & Tricks

Introduce snails into the aquarium. They will eat some of the algae before you spot them.

Some fish, such as mollies, have a plant-based diet that can be used to remove small amounts of algae.

If algae and plaque appear in large quantities, then you need to eliminate the cause of the algae outbreak, and only then clean the artificial aquarium plants and decorations.

Why does it appear on glass and decorations?

Why does the aquarium get green bloom? There are many reasons for this trouble. Let’s analyze the most popular.


Here are some guidelines to help you avoid overgrowth of algae in your aquarium.

  • Daylight hours should not exceed 11 hours, ideally 8 hours. You can set the timer so that the backlight works, for example, 4 hours in the morning and 4-5 hours in the afternoon.
  • Maintain the water temperature in the range of 22-27 C (optimal. 24-26 C).
  • Maintain phosphates in water no more than 0.8 g / l, nitrates. 25-40 mg / l.
  • Choose fast growing plants.
  • Change the water in the aquarium in a timely manner.

How to clean at home?

How and with what to clean the aquarium from green plaque? There are 3 ways to deal with this problem:

  • biological;
  • chemical;
  • mechanical.

How to deal with chemicals?

If you are not ready to wait that long, you can use chemicals. Streptomycin powder is sometimes used. To do this, it is diluted with boiled water and introduced through a filter at the rate of 3 mg of powder per 1 liter of water in the aquarium. The plaque will disappear in a few days and the aquatic inhabitants will not be harmed.

They need to be applied approximately once every 4 weeks in accordance with the directions for each specific product. The manufacturer of the line reminds that during the use of these products it is necessary to turn off the UV filters and avoid filtration with activated carbon. You also need to supply oxygen to the aquarium and remove dead algae.

Getting rid of it using a biological method

To restore the balance of living things in a closed ecosystem of the aquarium, you can use natural methods.

For low-tech aquariums that are not supplied with carbon dioxide, a simple method that requires only patience from the owner is suitable. It is effective primarily against protococcus and green dust. How to wash?

  • leave the aquarium for 3-4 weeks without applying any fertilizers (the plaque should turn white);
  • thoroughly clean the glass with a scraper;
  • replace the water in the aquarium by 30%.

If carbon dioxide is supplied to the aquarium, then fertilization will still have to be applied, otherwise the plants will die. You can reduce the amount of macrofertilizers by 25%. The main condition is not to try to remove plaque until it turns white, otherwise spores will form again and again, and the fight against algae will stretch indefinitely.

The biological method is the most gentle, but it allows you to effectively solve the problem.

Temperature rise above 27 С

Protococcus tolerates a drop in temperature, but in the warmth it begins to multiply even more actively.

Slowdown in the growth of higher plants

Multicellular plants do not consume enough nutrients. Sometimes this happens because they lack some important substance that is not so essential for algae.

Another reason is the drop in water temperature below 22 C. Under these conditions, higher plants “fall asleep”, stop growing, eat less.

Algae, on the other hand, feel comfortable and willingly feast on what the neighbors did not eat. One of the unpleasant consequences of the slow development of plants is the imbalance of phosphates and nitrates. phosphate rises, nitrate concentration falls. This situation is fraught not only with the appearance of plaque on the walls of the aquarium, but also with the reproduction of blue-green algae.