Open-air fish ponds are only suitable for two kinds of fish, one is goldfish, the other is koi. Because it is difficult to control the water temperature in open-air fish ponds, it is unrealistic to raise tropical fish, cold water fish is not good, we must raise some wide-temperature fish with strong adaptability to temperature, and goldfish and koi are back fish, so it is more appropriate to raise them in fish ponds.
1. Clear the pond: If you want to raise goldfish in a fish pond, you must first clear the pond. The purpose of clearing the pond is to eliminate harmful bacteria in the pond and some organisms that may cause harm to the fish. If there is silt in the pond, it is better to dig out part of it, then sprinkle the whole pond with quicklime, dry it for several days and then rinse it with water.
2. Fish release: In order to ensure that goldfish have certain food after entering the pond, it is best to fertilize the pond before putting in, which can promote the growth of some plankton, and the fry can eat them to survive after entering. When the water is fat enough, you can put the fry into it, pay attention to the density.
3. Feeding: Goldfish is an omnivorous animal. It can accept a lot of food. However, in order to make it grow better, it is mainly fed with fish and insects in the early stage. Later, it can be gradually changed into fish feed. It is fed two or three times a day. The amount of feeding each time should not be too large, so as not to make it sick.
