颗粒饲料养鱼四注意耀忠使用颗粒饲料养鱼时，应注意以下四点：豆．注意水质和溶氧情况。鲤科鱼类要求水中溶氧量在每升４毫克以上，若溶氧量降低到每升３毫克时，鱼援食就差；每升０．７—１毫克时，鱼类就会浮头死亡。利用颗粒饲料养鱼，密度较大，容易造成水质腐败和水... Particulate feed fish attention Yaozhong pellet feed fish should pay attention to the following four points: beans. Pay attention to water quality and dissolved oxygen situation. Cyprinidae requires dissolved oxygen in water at 4 mg per liter or more, if the dissolved oxygen reduced to 3 mg per liter, the fish aid poor; 0.7-1 mg per liter, the fish will be floating head death . The use of particle feed fish, density, easily lead to water quality corruption and water ...