1. what to do

if there is no flowing water in the fish pond? If there is no flowing water in the fish pond, the water can be changed regularly to avoid the deterioration of the water quality. It can also be cleaned regularly, that is, when fish are not raised, the water in the fish pond is drained and the sludge at the bottom is removed, so that the water quality of the fish pond can be maintained. Or use drugs to change the bottom regularly, such as putting in some probiotics to cultivate flora, so as to better decompose organic matter and harmful substances, and improve the water condition of stagnant fish ponds.

Catfish: Catfish, also known as bearded fish, is a kind of fish with scaleless body surface and more mucus. It is widely distributed, mainly produced in the Yangtze River and Pearl River basins, and has high edible value. This kind of fish lives at the bottom, is more afraid of light, and likes slow-flowing waters, so it can also survive in stagnant fish ponds.

2. Carp: Carp, also known as carp kidnapper, originated in Asia and has been introduced from Europe and America. This kind of fish is a benthic omnivorous fish, with a wide range of bait spectrum and strong adaptability, so it can also be fed in stagnant fish ponds. It should be noted that its activities are affected by temperature, and it often stops feeding in winter.

3. Crucian carp: Crucian carp is one of the common freshwater fish in China. It is distributed in many places. It has a wide range of feeding habits, strong adaptability and disease resistance. In addition, it grows fast and does not require high temperature. Therefore, it is a very good cultured fish.