If you see fish lying at the bottom of the aquarium, do not rush to get upset. The presence of diseases in this case is not at all necessary. This behavior can be attributed to a variety of factors.
Normal behavior
Each breed of aquarium fish has its own individual habits and behavior. A catfish seen at the bottom of the aquarium, for example, is unlikely to cause concern for its owner. These fish spend most of their time in shelters, they can bury themselves in gravel and simply inspect the bottom of their home.
The reason for the fish lying on the bottom of the aquarium may be injury. Try to take a close look at her body. It is better to transplant the fish into a separate container and provide it with maximum care.
Loaches and cichlids are fish that like to rest at depth after eating. In addition, these species of aquarium dwellers are very curious, so gravel for them is a fascinating environment that must be examined and studied.
Most species of fish at night prefer to be located at the bottom of the aquarium. If you suddenly turned on the light and saw a banal dream of fish, then you should not look for reasons for concern.
In addition, when transplanted into a new aquarium, fish can also spend quite a long time at the bottom. The addiction occurs gradually, so you should immediately prepare for the fact that even active creatures can fearfully snuggle against the gravel.
Overeating is one of the most common causes of fish congestion at the bottom of an aquarium. Learn more about feeding and consult a specialist if necessary.
Condition of the aquarium
If the fish that live in your aquarium do not differ in the bottom lifestyle, but constantly sink into the lower part of the tank, then special attention should be paid to the condition of the water and the efficiency of the equipment for cleaning it. It is likely that the reason for the deterioration in water quality is a breakdown or incorrect settings of the purifiers and heaters.
The temperature in the aquarium should not exceed 25 degrees. Otherwise, the fish will cool at the bottom. If the water is too cold, the inhabitants of the aquarium may experience discomfort in the form of loss of energy. They simply cannot physically be on the surface of the water or move around the perimeter of the aquarium.
Fish behavior
Disease in fish, often lying on the bottom, can be identified by a variety of symptoms. Try to observe their behavior as closely as possible.
If the fish rub against the gravel with their sides or belly, then this can be considered the first sign of their illness. The immobile behavior of an active inhabitant of the aquarium may indicate his imminent death. In the presence of such symptoms, the fish should be separated from the main group and try to cure with additional additives to the main diet.
Swim bladder dysfunction is the most common cause of a sudden deterioration in the condition of fish. It is very difficult for them to swim with such a disease, which leads to a constant presence at the bottom of the aquarium.
