Waterlife Cuprazin 60ml is for the effective treatment of diseases in marine aquariums. This copper based medication is ideal for treating whitespot, oodinium, benedenia, trichodina and fungal infections. Cuprazin's formula is designed to be low stress inducing, with a gradual compounding dose. Do not use in aquariums with invertebrates, corals, algae, live rock, sharks, rays or harlequin tuskfish. Treats upto 128 litres.