Sometimes fish reach for the surface of the aquarium and try to swim as high as possible.
And there may be several reasons for their behavior.
Moreover, some of them may indicate the presence of serious problems.
If there is a lack of oxygen, the fish will experience discomfort and try to leave the aquarium.
If there are plants in the tank, they will then begin to wither.
Therefore, even if you have an aeration system, you should ensure that there is enough oxygen for all fish.
It also depends on the water temperature. The higher it is, the stronger the aeration should be in this case.
Another reason for this behavior of fish may be poor water quality.
Therefore, it would be a good idea to install special filters in the aquarium and update them regularly.
In addition, it is worth cleaning the tank and removing all waste. It is also important to periodically change both the water and the soil.
If all other factors are excluded, then it is worth paying attention to the condition of the fish.
After all, they can be drawn to the surface of the aquarium due to various diseases.
Another alarming sign is that the fish swims along the top of the tank, swaying.
In addition, some other signs may indicate the presence of a certain disease in fish.
In particular, the appearance of white spots or a kind of white “fluff”.
Also, this behavior of fish can be caused by stress.
This can be caused by sudden changes in the environment, the appearance of new pets in the aquarium, or incorrect water parameters.
Earlier we wrote about what you shouldn’t do if you decide to get fish.