The dragon louse is mainly carnivorous, but also can be both phytophagous and carrion, good at catching small organisms in the water, organic matter and water plants. In artificial rearing conditions, the dragon louse feed is generally corn meal, rice bran, wheat bran and sweet fruits and melons, but also can be fed to the broken Fuso snail, as well as the widespread rural pigs, chickens, cows, ducks, scraps, generally fed once a day in the evening, feeding amount of dragon lice for the total weight of the 7%-8% (each dragon louse food for 0.15 grams or so), can not be fed every other day, so as to avoid mutual killing phenomenon. It should not be fed every other day to avoid killing each other, nor should it be fed with poisonous and infectious food, otherwise it will lead to the death of the lice or the long time not being able to reproduce. The breeding cycle is 8 months, the first 3 months to feed mainly meat, such as Fusiliers, beef liver, fresh scraps, dead fish, dead shrimp, etc., the last 5 months to feed the main mixed feed, that is, meat and vegetative feed according to a certain proportion of the feed with the feed.