1. How to breed small fry of koi fish 1. Breeding environment: To breed small fry, a good breeding environment should be provided first, and a breeding tank can be prepared separately to put parent fish into it.
2, waiting for pairing: select Koi with strong physique and sexual maturity, and put it into breeding tank for pairing according to the ratio of male to female of 1: 3.
3, waiting for spawning: Some aquatic plants can be put in the tank to facilitate the attachment of fish eggs. After spawning, the parent fish should be fished out in time to avoid swallowing the fish eggs.
2. How to raise small fry of koi fish1. Water quality: Koi fish doesn't like hard water, so it is necessary to soften the water before raising, otherwise the fry will be difficult to adapt. If tap water is used for farming, it is necessary to dry tap water in the sun in advance, so that the water can release chlorine gas, which is convenient for farming.
2. Water temperature: Koi seedlings of two to three centimeters do not require high water temperature, so it is enough to keep the water temperature at 25 degrees Celsius. If the water temperature exceeds 27 degrees Celsius, oxygen should be started to avoid hypoxia of koi seedlings.
3. Feeding: Koi seedlings of two to three centimeters are in a vigorous growth period, and the demand for nutrients is relatively high. Besides general fish feed, animal feed, such as earthworms and red worms, needs to be fed to promote the growth of Koi seedlings. Under normal circumstances, feeding animal feed twice a week can meet their needs.
