... saturated ammounia, CO2, methane, sulfureted hydrogen, etc. go out of the water → the water quality improved. FunctionShrimp, eel, fish ... quickly and healthly and can be avoided to die because of lack of enough disssolved oxygen in the water, meantime, can ... -saving, long durability and easy maintenanceC: Suitable for various farming of aquaculture products such as fish, shrimp, crab, etc.D: Motor: ...