The swimming season in Russia traditionally opens with the holiday of Ivan Kupala (on the night of July 6-7). It ended on Ilyin’s day (August 2), even if August was warm. Water during this period turns green (“blooms”) and becomes unsuitable for swimming. Also water is painted in the aquarium and in any open vessel (bottle, jug, decanter).
Causes of water bloom
You can understand the reason for this phenomenon by examining a drop of water under a microscope. In the "blooming" water is easy to see the particles of microalgae. These are the so-called cyanobacteria, algae of blue-green color. For the development of cyanobacteria, two conditions are necessary: sunlight and nutrient medium. The answer to the question of why the water turns green in an aquarium is obvious. An aquarium is placed in the light, because light is necessary for the normal functioning of its inhabitants. The nutrient medium is formed by the remnants of food (therefore, it is not necessary to give the fish more food than is required). In reservoirs, the nutrient medium for the development of blue-green algae is mainly created by nitrogen and phosphorus. Cyanobacteria develop in a decanter, a jug and any other vessel of water standing in the light when in contact with air, because air has a complex formula that includes a lot of chemical elements.
Fight against water bloom
Water in reservoirs is also cleaned chemically or mechanically. Also used for cleaning ultraviolet filters (they are equipped with pumps for this purpose) and circulating systems. In the case of the bottom-circulating method of cleaning, water is taken in by the pump from the very day of the reservoir and supplied to the surface through a piping system.
In order not to turn green the water in the bottle (jar, barrel, and other vessels), it is necessary to limit the access of sunlight and ensure tightness (minimize contact with air).
Self-purification of water in natural aquatic ecosystems occurs due to physicochemical and biological processes involving hydrobionts: living organisms and plants. The condition of the aquarium water depends on the organization of the system (maintenance mode, power and type of filter, the presence of living plants, drifts, the number of fish and food). may change under the influence of various factors. Thus, the low content of oxygen in it, which is consumed for the oxidation of organic matter, leads to an increase in the concentration of decomposition products. The water becomes cloudy, gets the smell of hydrogen sulfide. But there are cases when it becomes green. So why is the water green in the aquarium?
The reason for its turbidity is the mass reproduction of bacteria, and the water turns green usually from green microscopic Euglena that multiplied in an aquarium is normally always present in an aquarium, but during its reproduction water begins to "bloom", which can be painted in color. More often it is observed in aquariums with excessive brightness of the light source. Often, fans of ornamental fish, acquiring aquariums for the home, place them in the most convenient and "cost-effective" place – near the windows. Direct intense sunlight promotes active reproduction in the water that cover the glass aquarium, decorations, plants. Strong also promotes reproduction euglena. It can be brought into the aquarium and with live food for fish from natural waters.
The first actions that are taken by novice aquarists are a complete replacement of water, cleaning plants, decorations. Similar, logical at first glance, events only aggravate the situation, causing bewilderment and the question of why the water is green in the aquarium, despite all efforts.
Changing water does not improve the situation. It is necessary to eliminate the causes of its “flowering” – turn off the light for a few days, shade the aquarium, located near the window. After this, the regular change of water and cleaning of the soil will allow to correct the situation, since light and nutrients only stimulate the growth of green algae. Keep the aquarium clean at all times.
You should know that the process of water self-purification will accelerate with the addition of "old" water (1/3 of the total) to the aquarium, pre-stored, rich in humic acid and a set of microorganisms that help restore a healthy environment. You should know that it is harvested from a prosperous aquarium, not overcrowded with fish, with well-growing plants.
In order not to wonder about why the water is green in the aquarium, you can run daphnias into it. In this case, it is better to seed the fish so that they do not destroy the crustaceans.
Special diatomaceous filters and UV sterilizers help to eliminate the "blooming" of water.
In order to no longer wonder why water is turning green in an aquarium, it is necessary to achieve the necessary biological balance for its aquarium inhabitants. To support it, you need to adjust the lighting: apply curtains, screens, change the power of the lamps. Remember that it is important where the aquariums are installed. The fish will feel great with proper lighting, proper feeding, aeration and filtering.
It is useful to acquire new inhabitants of the underwater world who eat algae. These are pteregoplichts, antsitrus, which remove plaque from glasses, mollies, Japanese shrimps, snails, ampulyaria.
To eliminate the problem of green water, it is necessary to find out the reasons for its appearance. The most easily removed cause of water blooming in an aquarium is excessive light. Improper illumination or abundance of natural light leads to the growth and reproduction of specific algae. Plants are green and do not differ in large size, so the water becomes a swamp hue.
Popular reasons why water turns green
Insufficient cleaning of the aquarium leads to a green space. If the organic waste of fish living in an aquarium is not removed in time, then over time it will be faced with the problem of flowering. Performing regular cleaning , You can get rid of another reason for the flowering of water.
The inhabitants of the aquarium do not always consume all the food thrown by the owner. Subsequently, the remains of fish food settle between the algae, on the rocks or other decorations of the aquarium. With a long stay in the water space, the excess feed begins to rot, polluting fish habitats. Cases why more water may turn green:
- many plants planted;
- rare or, conversely, too frequent maintenance of the aquarium;
- no compressor;
- temperature above 28 degrees.
What to do if water has bloomed
The first thing you should not do – It is trying to get rid of the flowered water, constantly changing it to clean. The shift must be timely, but not excessive. If the change is too frequent, the “life of the aquarium world” is disturbed: fish and plants located in tight spaces have their own bacteria, both useful and harmful. The latter are formed in rotten water, lack of space. That is why the water in the aquarium turns green.
How often to change the water
Useful microorganisms help fish maintain a specific habitat. Water running from the tap does not contain substances favorable for fish. Useful is settled water. If there is a compressor in the aquarium, the replacement is carried out once every 2-4 weeks. The frequency of the procedure for cleaning the aquarium and filters depends on the following factors:
- capacity volume;
- species of fish;
- the number of inhabitants;
- plant type;
- availability of special equipment aimed at water aeration.
The correct lighting mode
The error of all aquarium lovers is that they forget what they bought it for. Trying to please both fish and plants, in the end, it is impossible to create optimal conditions for all. If plants need a lot of light, then you need to move them to another container.
The aquarium should not stand in the dark, but it is also not worth exposing it to sunlight. The ideal place is in the middle of the room, on the kitchen shelf or chest of drawers, but not on the windowsill. The optimum distance is at least 1.5 meters from the source of daylight (window).
If the aquarium is illuminated with lamps for more than 14 hours a day , that is, the risk of green algae and flowering. You can choose a special UV sterilizer – a device with directional ultraviolet rays that regulate the growth of algae. Duration of lighting depending on the season:
- in winter – 10 hours;
- in the summer – 12 hours.
Many have heard about unusual creatures, natural "cleaners". These include "sea sponge", catfish, snails. Each creature performs its function. U on cleaning space:
- The "sea sponge" serves as a filter. If you look at it under a microscope, you can see how water trickles enter and exit through the holes. Do not forget that such an assistant should be periodically cleaned, but it should be done very carefully.
- Catfish and snails. These inhabitants pick up the remnants of the uneaten food on the plants, the walls of the aquarium, between pebbles and a pebble. When choosing somics, you need to pay attention to the creature’s appearance: feeding on food and living in a favorable atmosphere, after a time they grow to large sizes.
Slowing the growth of algae until the moment when the full cleaning is done will "help" the darkness: move the aquarium to an unlit corner of the apartment. So, harmful algae will decline. The remaining tips for cleaning the aquarium:
In order for the water to never bloom, it is necessary to pay due attention to the aquarium and its inhabitants. Regular cleaning, the right temperature, the optimal ratio of feed, enough space for fish and plants – these are the basic rules, following which you can easily avoid problems with flowering.
Have you ever heard that the water in the aquarium bloomed or turned green, and very quickly. What to do in this case? First, you need to find out the reason, and second, learn how to deal with it.
Quick transition on the article
The reasons for the appearance of green water in the aquarium
Why is the water in the aquarium green? The reason is as follows: when blue-green algae reproduce, or euglena, to wait for the landscaping of the water. You should know that these algae are single-celled and they float on the surface of the water in the form of an invisible film. Euglena is an important part of the food chain of the underwater world, and under the necessary conditions (reduction of nutrients, carbon dioxide and oxygen, a wide range of temperature conditions), it is rapidly multiplying. It is not so easy to get rid of the flowering of water, given its sudden flashes. With strong light (green algae love it), with frequent renewal of water using chemicals, the biological filtration system of aquarium water gets lost, as a result of which euglena multiplies and grows.
How green algae appear in water – additional reasons
Blue-green algae like long-lasting lighting, more than 10-12 hours a day. This is another reason why the reservoir blooms. When you start a new aquarium, you should light it gradually, starting from 4 hours a day, increasing the number of daylight hours to 10 hours. Also, do not forget that with an excess of fertilizers for plants, the amount of phosphorus decreases. Plants grow poorly, and the water begins to turn green. That is why it is necessary to eliminate all the errors that are allowed during the maintenance of the aquarium:
- When starting the aquarium, the illumination is set up incorrectly, a large number of plants are planted;
Watch the video story about aquarium lighting.
- Frequent tank maintenance (water renewal, cleaning, aeration);
- Enhanced feeding of fish;
- High water temperature in the tank;
- Reverse cases – a rare care for the aquarium – not enough aeration, fresh water, no compressor.
Green turbidity of water – not a sentence
Why is water blooming not a sentence? If you know the main thing that "greens" causes ammonia released by algae, everything will quickly fall into place. New, recently launched aquariums are sometimes not serviced correctly, which causes an incorrect nitrogen cycle. The first outbreak of euglena can lead to the fact that it will be difficult to get rid of it forever. To regulate the nitrogen cycle when starting the aquarium, turn on the light for only a couple of hours for 30 days, use “old” water from the old aquarium and the used filter cartridge. This normalizes the nitrogen cycle.
There are more ways to get rid of algae. What to do:
- Use an ultraviolet sterilizer to help neutralize euglen. Once turned on, it will destroy algae cells with ultraviolet light.
See how to choose the right UV sterilizer.
- Install a diatom filter – an effective way when dealing with green algae.
- Turn off the light in time. This method controls the appearance of "green" water, and will save time and money on additional equipment. Cover the aquarium on time. Feed the fish and other inhabitants of the aquarium for 7 hours of daylight. Healthy plants can live in water for about a week without using light. After the procedure, you can change 30% of the water to fresh.
- The use of coagulants – small particles in a mechanical filter that removes flowering from a water tank.
- Destroys the blue-green algae granular activated carbon added to the filter. In the process of "treatment" the filter can be cleaned 1-2 times a week.
- The use of micro cartridges also blocks outbreaks of flowering.
- In certain cases, combine these methods while simultaneously applying filters and ultraviolet (as an example).
How to deal with fish, if the water turned green?
The disturbed biological balance of the aquatic environment quickly deteriorates the health of living beings living in it. There are good recommendations that are suitable for aquariums with small fish, where the water is green, and the plants are not planted deep in the ground. To prevent the fish from getting sick, the following procedures should be performed:
- send pets to other aquariums or tanks with clean water and similar composition of water; make sure the fish do not get sick;
The phenomenon is certainly not pleasant, but the most innocent. After all, only glass is green. and even the scenery remains clean. Discomfort is felt only by the owner of the aquarium, and not by its inhabitants.
Occurs in the case of active reproduction of single-celled green algae Protokokkus (Protococcus), aka Chlorococcus (Chlorococcum). In foreign literature, this phenomenon is called Green Dust Algae.
Symptoms of the Protokokkus manifestation in the aquarium
It should be noted that Protococcus There is always in the aquarium. This is part of his microflora. The appearance on the aquarium wall of a small green patina in 1.5-2 weeks in a well-lit aquarium is the norm. It looks like a clouding of the front glass and is easily removed with a soft sponge.
BUT. If there is a confluence of certain factors, the process of reproduction goes into the active phase. In this case, already for three days, a dense dust-like deposit on the walls of the aquarium is so strong that it is impossible to look through the front glass through the front glass. It usually looks like a large spot or streak at the top of the sight glass. In severe cases, the glass turns green completely. This plaque is still easily erased, but appears again in a couple of days.
Vegetative reproduction of the Protokokkus occurs as a result of division and is not dangerous, since this process is slow. But asexual by using zoospores. At the same time, 8-32 zoospores are formed from a single cell, which float in the water column, cling to the smooth surface (glass) and the process repeats again.
It is important not to confuse protococcus with other species. If the deposit grows tightly into the glass, it is difficult to remove and forms rounded spots – most likely it is. And if dust is formed on the leaves of plants and on the entire contents of the aquarium -. Protokokkus – green slippery dust on the glass of the aquarium, which is easily removed and does not infect plants.
Causes of green plaque on the wall of the aquarium
The reasons for the appearance of green dust on the glass aquarium a lot of controversy and reflection on the forums. However, this question is poorly studied. It is known that such a raid may suddenly appear in the new and in the long-established aquarium.
Another point is the high concentration of phosphorus (> 0.8 g / l) with a low concentration of nitrogen (blue-green algae.
It is also noted that Green dust algae appear in aquariums with a day length of more than 11 hours per day and an elevated water temperature (> 27 ° C).
Growth Green dust algae stimulates a group of factors, not one of them.
How to get rid of green plaque on the walls of the aquarium
With the reasons figured out, but how to deal with the Protoccus? In fact, the solution has long been described on many resources. The problem is that many aquarists do not like it 🙂
In order to get rid of green dusty deposits, you just need to give the algae the opportunity to end the breeding cycle. Have Protococcus The asexual breeding cycle of zoospores takes 21 days. During this time, the zoospores are completely deposited on the glass and become cells. During this time, the patina brightens (fades) and begins to die.
Attention! Low-tech aquariums (without additional supply of carbon dioxide) can simply be left alone for 21 days, after a general cleaning and water change of 30%. During this time, the substitution does not, fertilizers do not make.
But if you also do with a high-tech aquarium, then most likely the plants will not survive this. Therefore, if additional supply of carbon dioxide is used, the schedule of fertilizer application and water change does not change. It is possible to reduce the introduction of macro-fertilizers by 25%. The main thing is not to clean the glass, as it would not.
After the specified period of time, the glass must be cleaned with a scraper, and dead algae residues must be cleaned with a hose with a water change. It is also necessary to analyze the possible causes of green bloom in the aquarium and eliminate them. If you have patience and wait for the specified period – you can easily get rid of the Protococcus in the aquarium. Otherwise, it will be unsuccessful to clean the glass from the plaque for months.