A: food orientation: bearded fish is a kind of omnivorous fish with animal bait as its main food, its food quantity is large, the daily food quantity is 5-8% of its own body weight, the maximum can reach more than 15%, such as overfeeding, it will produce the phenomenon of overfeeding and bloating death. Bearded fish has strong hunger tolerance, fish species or parents in artificial wintering period, 4-5 months without feeding will not die, when the water temperature rises to 15 ℃ above the start of normal feeding, the temperature at 20-35 ℃ when feeding exuberant. Generally May-September is the feeding period, when the growth rate is the fastest. In natural water bodies, the fry mainly feed on rotifers, daphnia, tsetse, branchiopods, copepods and so on. In the 4-7 days after feeding, they rely entirely on predation for nutrition. The palatable objects gradually change from small to large, and mainly feed on large-sized branchiopods, and when the branchiopods are insufficient, they also feed on organic debris, aquatic insects and worms in the water. Adult fish mainly feed on worms, aquatic insects, benthic animals, small fish, shrimp and animal carcasses, organic debris, young stems and leaves of plants. Under artificial feeding conditions, it can be fed animal feeds such as blood, offal, fish meal, silkworm pupae, snails and clams, earthworms, fly maggots, etc.; it can also be fed plant feeds such as rice bran, peanut cake, wheat bran, soybean cake, and corn meal.