Tropical fish will not recognize their owners, because there are not many fish that can recognize their owners, such as silver arowana, Luohan fish, map fish, fortune fish, koi and goldfish. However, it should be noted that the fish does not recognize its owner in the true sense. It can only form conditioned reflexes through long-term feeding and training, so that it can make some responses according to instructions. Of course, this not only requires the type of fish, but also requires a certain amount of time for interactive cultivation.

How to raise tropical fish:

1. No matter it is spring, summer, autumn or winter, it is best to keep the water temperature stable at 24~28℃. Fish are very sensitive to temperature changes and water temperature fluctuations. If the temperature exceeds 2°C, they may suffer from anorexia or indigestion. Only by maintaining a stable water temperature can fish not easily get sick.

2. No matter whether the fish tank is large or small, the density of fish must be controlled. No matter how large the fish tank is, the amount of dissolved oxygen in the water body is limited. If the number of fish is large, they may also be hypoxic. The greater the number of fish, the easier it is for the water to spoil. Once one fish becomes sick, other fish will soon be infected.

3. Tropical fish like to hide in aquatic plants. You can put some bottom sand and aquatic plants in the fish tank, which not only makes the fish tank more ornamental, but also allows timid fish to have cover and give them a sense of security. , you will be healthy and active.

4. Raising tropical fish generally requires changing the water once a week. Before changing the water, suck away the fish feces and food residues at the bottom of the fish tank, and then extract one-quarter or one-third of the turbid water at the bottom. Either way, then add an equal amount of trapped water.