1, choose fish fry: need to choose the right size, the same location of the fish fry, not to choose a different place of the fish fry. 2, pond: the pond needs to be added to the appropriate amount of crucian carp, to purify the water quality. 3, the environment: you need to ensure that the water quality in the pond is clean, can not use the polluted water source. 4, feed: regular feeding of fish grass, special feeds can be fed is a small amount of watermelon rinds, pumpkins, winter melon and other melons.
General conditions, fish fry density control in 220,000 ~ 300,000 tails / 1000 square meters for the optimal conditions, more than this value will lead to a significant increase in the rate of disease.
Keeping the amount of fish in the pond at 1/2K ensures that the grass carp has the fastest production rate and a certain economic benefit.