Goldfish swimming circles caused by nitrate poisoning
Goldfish swimming circles caused by nitrate poisoning. Nitrates create pressure in the body by robbing oxygen from blood. The higher the nitrates, the greater the pressure. The pressure of deep water relieves the pressure caused by nitrates; one offsetting the other. This is why we see our fish laying flat on the bottom when toxin levels are high
Most goldfish live in water that is low in oxygen. Water low in oxygen and high in nitrates is a deadly combination
As the condition worsens, the fish begins to curl or bend to one side. When they attempt to swim, they go in circles due to the bent position of their body. Goldfish keepers have a tendency to perform large and fast water changes in an effort to help their sick fish, however, this only worsens the condition. It’s the low water table that pushes the fish over the edge
Decreased pressure of water increases the pressure in their body