Why Does A Fish Swim Nose Down

If the fish in your tank floats almost vertically, nose down, it can mean one of two things. For some fish species, this is normal behavior. More often, however, this suggests swim bladder problems. These problems, in turn, can have various causes and for successful treatment of fish it is necessary to establish them, but first of all one must be sure that such swimming is not the norm for this type of fish.

Norm
For some fish species, swimming at this angle is the norm. For example, gnatodoluses and chylods from the tetra family swim vertically most of the time. This is because they are looking for food at the bottom. If we talk about sea fish, some relatives of sea horses also swim vertically in order to disguise from enemies. A lion fish, one of the pearls of saltwater aquariums, can control the position of its swim bladder, which allows them to hang motionless at strange angles. This behavior may seem strange to a new aquarist, and it can be mistaken for a disease.

Why Does A Fish Swim Nose Down

Swim bladder disease
The swim bladder allows the fish to maintain its buoyancy and move up and down in the water column without the aid of fins. This body is a bag filled with gas. But unfortunately, he may suffer from injury, shock or infection. One of the manifestations of the violation of its functions is that the fish swims at a strange angle, including upside down. The causes of this condition may be different, so before taking action, you need to find out why it arose.

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Causes of swim bladder problems
Usually problems with swim bladder are the following factors. As a result of the selection, some species of goldfish and cichlids with highly rounded bodies were bred, and this affects the functioning of the swim bladder. Physical injury as a result of fights between neighbors in the aquarium or because of the transportation of fish can also lead to problems. Shock and stress, as well as infectious diseases and constipation are other common causes of swim bladder disease.

Treatment
First you need to establish the cause of the problem. If a diseased fish appeared recently in your tank, most likely the disease was the result of shock or injury during transport. In this case, it is best to wait a bit, as usually such things are treated on their own. If the fish begins to swim at a strange angle after feeding, most likely the reason is constipation. Try not to feed her one day, and then feed her with artemia (saltwater shrimp), daphnia or elodea. If you do not see a clear reason for this behavior, the matter may be in the infection. In this case, it will be necessary to add special antibiotics to the water in accordance with the instructions of the veterinarian. Most often, fish that do not have any birth defects afterwards recover without any consequences.

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