Fish will not get depression. There is no clear cause of the disease, it will affect physiology, cognition, learning and so on, these behaviors are relatively rare in fish, so it is unlikely to suffer from depression. If the fish appears to be more withdrawn, it may be entirely due to personality problems, rather than disease.
1, fish tank: a fish tank is also needed to raise a fish, and do not use a small tank to wronged it because there are few fish, must provide adequate space for activities, so that the fish can grow healthily, otherwise it is easy to get sick, its dysplasia, or even lead to its death.
2. Water body: The most important thing for fish farming is to raise water. The water body should be controlled in all aspects. First of all, the water temperature. If it is a tropical fish, the temperature must be controlled between 20-30 ℃. Followed by Ph, according to the different habits of fish, generally adjusted to weak acid or weak alkaline, can also use neutral water. There is also hardness, usually choose soft water for feeding.
3. Feeding: The growth of fish cannot be separated from nutrition, so you must pay attention to feeding at ordinary times. Although this kind of animal's hunger tolerance is very strong, but does not feed for a long time, it is very easy to raise it to the old head fish, the size will be limited. In addition, we should choose the bait that fits the mouth, so that it can eat.