To judge whether a fish is an old man fish, first of all, it can be compared with the same kind of fish that it was born with. If its body size is very small, it indicates that it is an old head fish.It can also be compared with the fish with the same body shape, in which the eyes are often larger is the old fish.In addition, the old fish's swimming experience is more abundant, more aggressive, and the appetite is much larger.
1. Too little feeding: The most common cause of the old fish is too little feeding.The hunger tolerance of fish is very strong, feeding once every three or five times will not starve to death, but this will make the fish become old fish due to lack of nutrition.If you want to avoid this situation, you need to feed the fish every day, two or three times a day.
2. Space is too small: People who raise fish generally have this kind of experience, that is, if large fish are placed in a small tank, they often do not grow up.Therefore, too little space will also lead to the fish into an old fish, want to let the fish grow up, must provide sufficient space, at least let it be able to turn in the tank.
3. Drug stimulation: If the drug is used when raising fish and the dosage is not well controlled, the drug will stimulate the fish and turn it into an old fish.However, this situation is not very common, because fish farming in general rarely use drugs, most of the time with the old three kinds of treatment.
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