... all viral families affecting Fish, Shrimp, Crab and other Aquatics.Use to prevent bacterial gill-rot disease, white spot disease, ... systems.An excellent and safe water sterilizing agent.Suitable for use in all aquaculture applications including ponds, tank, hatcheries, farm ... best results (example; 1kg Roxycide to 100 litres water).Use a clean container of sufficient size (example 200 litre drums ...