新挖鱼塘放养鱼苗要注意四个方面的问题。(一)要投放大规格鱼种。鲤、鲫鱼种应在8厘米以上;草、鲢、鳙鱼种应在17厘米以上。投放前几天,将池塘水深加至20厘米,每667平方米水面施生石灰75千克,清塘消毒,预防病害。(二)要重施基肥。鱼种放养前,每667平方米水面应施经过发酵的人、畜、禽混 New fish pond stocking fish should pay attention to four aspects of the problem. (A) to put large-scale species of fish. Carp, carp species should be more than 8 cm; grass, silver carp, bighead carp species should be more than 17 cm. A few days before delivery, the pond water depth to 20 cm, 75 kg of lime per 667 square meters of lime, clear pond disinfection, disease prevention. (B) to re-apply base fertilizer. Fish stocking before, every 667 square meters of water should be fermented by people, livestock, poultry mixed