The management of desired DO levels in the culture ponds is very important for all the functions to be at optimum level. Sometimes due to the variation of the plankton density and low oxygen levels, there will be DO problem in the ponds. OXY G is one of the best combinations for the prevention of DO problems and also it will enhance the oxygen levels in the ponds and maintains for long periods. The drop of DO during the moulting time in shrimp culture is common and OXY G will enhance the DO levels and activates the moulting cycle and improves the post moulting hardening capacity in shrimp ponds. The regular dose is 2-3 Kg/Ha and during DO problems it is 5.0 Kg/Ha.