... aquaculture. This product can increase the dissolved oxygen of the water environment, to reduce the chemical oxygen demand and ammonia nitrogen values, to ... 10~15 daysTreatment0.15g-0.22g/m3 [900g-1200g/acreage.meter]Every other day for serious conditionCrab, zoea, big eyeslarvae, ... of children.The product has a corrosive effect on metal. Do not use metal containers, and plastic products are suggested ...