See how the fish friends water the new fish.

CN has said a lot about the care of new fish, and many fish friends have learned to adopt, including myself. Pay tribute to your predecessors, you can't learn without their excellent articles. Today, we're going to talk about newly-launched fish. The quality of the new fish passing through the water determines whether the fish can grow healthily in the future. The root of new fish crossing the water is that fish can thrive only if they are healthy, so what is a healthy fish? Healthy fish: 1, observe whether there is trauma on the fish body surface. If a fish has trauma, it may be bitten or scratched during transportation, fishing and fighting. 2. Observe whether the fish's eyes are dull. If the fish's eyes are dim, it indicates that the fish may have diseases or other conditions. 3. Observe whether the fish is lying motionless in the tank. If the fish is lying in the tank, it means that the fish is willing to get sick, or it may be that the fish has just been transported and is adapting to the water quality. 4. Observe whether the gill cover can open normally and have a certain rhythm. If the gill cover of fish is not open smoothly or may be closed at the same time, there is no certain rhythm. It shows that fish may have gill diseases, such as gill rot and congenital defects. 5. Observe whether each fin of the fish is stretched, * pay attention to * especially observe whether the ventral fin, gluteal fin and dorsal fin are stretched. The opening of the ventral fin and the anal fin shows that the fish has adapted to the current water quality. On the contrary, fish may be adapting to the water quality (because of the large temperature difference between cold and hot) and may suffer from acute diseases. The open dorsal fin indicates that the fish is happy and in good condition, while the dorsal fin may not be open because of fear and so on.