Why does the water get cloudy in the aquarium
Many aquarium fish lovers occasionally wonder why the water in their aquariums became cloudy. There is no single answer to this question, but there may be several reasons for this.
- Gravel residue. If, after filling the aquarium with new water, it immediately or after an hour or two becomes cloudy, the reason may be insufficient washing of the soil, namely gravel. What should be done in this case? Pour water out of the aquarium and rinse the gravel thoroughly. Gravel should be washed until the water in which you do this is completely clean. Then lay the gravel on the bottoms again pour water. If the problem of the turbidity of the water was precisely in the gravel, the water will become completely transparent.
- Dissolution of the constituent objects that are in the aquarium. If after washing the gravel the turbidity of the water does not disappear, it may be caused by the slow dissolution of other objects in the aquarium. Most often, in this case we are talking about phosphates, silicates and heavy metals. In this case, an elevated pH level of water is usually observed. Treatment of water with the help of agents that improve its quality can be a solution to the problem.
- Propagation of bacteria. Typically, turbidity due to this reason does not appear immediately, but days, weeks, and even months after the installation of the aquarium. If the cause is in the bacteria, then nothing needs to be done. The turbidity of the water will disappear on its own after some time.
- Rotting plants and excess feed. Residues floating in the water can cause milky water turbidity. This is due to the increased growth of bacteria trying to destroy the feed. Nothing special is worth doing in this case. It is only necessary to give the fish as much food as they eat, and remove the excess. It is also necessary to remove residual feed and debris from the bottom. Feed your fish less often. Do this not every day, but every 2-3 days. In this case, the excess food will not remain, and the water will not become cloudy.
- Flake sediment. Sometimes the water may become cloudy due to debris in the water that collects in flakes at the bottom. These flakes can be easily removed with a filter (do not forget to clean the filter before use, then it will work better). Filters for removing debris from the aquarium are sold in pet stores; it is not difficult to purchase them.
Water does not turn green by itself, but because of the increased growth of algae. Here are the main causes of greening water:
- Too much light. If the aquarium is in the sun, or if the lamps above it are lit around the clock, this, in the end, leads to increased growth of algae. To slow their growth, it is necessary to remove the aquarium from the sun and limit the time it is under the lamps.
- Excess nutrients in water. Substances such as phosphates and nitrates contribute to the growth of algae, so they should be as small as possible in the aquarium. Changing the composition of water can reduce its green color, but does not completely solve the problem. It is important to find the source of phosphates and nitrates, then only the problem can be eliminated.
The sources of these substances can be decaying fish food and water itself. If you do a tap water analysis, you can find out if it contains phosphates. If there are a large number of them in your water initially, you will have to use a means for reverse osmosis desalination of water or means that can remove phosphate from your water.
These substances are a byproduct of fish activity. The only way to remove them is to change the water. Make sure your filter is clean and powerful enough to clean the aquarium. If you can remove all debris with a filter, the nitrate level will drop markedly.
In the vast majority of cases, turbidity in the aquarium can be eliminated by replacing 10-15% of water weekly, maintaining the purity of gravel and selecting good and high-quality food for fish.
Article translation: http://freshaquarium.about.com/cs/waterconditions/a/cloudywater.htm