The selection of swallow fish

Let's talk about swallow fish. First of all, when selecting fish, you should choose healthy fish with strong color contrast and good shape, and raise them since childhood. With regard to the issue of "disability", one should be divided into two, and some disabilities should be resolutely avoided when selecting fish, such as skewed body, deformation of head and mouth, etc., but general injuries, damaged scales and fins are minor ailments and will not affect the quality of reproduction. Four problems should be paid attention to in breeding fish:

First, it is necessary to increase the amount of water exchange, and it is better to exchange it less and more; it can be controlled at 30% once every three days; its purpose is to stimulate the metabolic function of fish.

Second, we should pay attention to disease prevention and insect prevention, once the disease, swallow fish is not easy to treat, mainly good medicine, should give priority to prevention. The biggest diseases of swallow fish are worms and enteritis. After the new fish are stable, they should be fed with bait for deworming first, once every two months for the first time, once every two months, once a day for three consecutive days. Bait is also used to prevent enteritis, once a month, two days at a time. Small doses of medicine will not affect reproduction. (I use "Zhenbao" No. 2 and No. 3 made in Tianjin as bait.)

Third, we should adhere to the diversity of bait, avoid singleness, and prevent malnutrition of fish species.

Fourth, to avoid high-temperature breeding, generally controlled at 25-26 ℃ is better, high temperature is disadvantageous to reproduction and the life span of fish.

Once the fish are grown and raised, pairing is very easy, so let them pair up naturally, so they don't have to be too demanding. Natural pairing usually occurs at the age of 6 or 7 months, but pairing does not mean reproduction, and it will take another 1 or 2 months. If you want directional breeding, you can also mix two males and one female, forced pairing, the time is 6 or 7 months old, when there is a natural pairing phenomenon, the success rate is about 90%.