White, sugar grain-sized spots covering the body indicate marine white spot (Cryptocaryon), while finer white spots are symptoms of marine velvet (Oodinium). Both are protozoan parasite diseases and may cause the fish to rub themselves against rocks or other aquarium décor.
Anti-Parasite uses the tried-and-tested method of chelated copper therapy, boosted by the power of formalin to rapidly control these dangerous parasites. Anti-Parasite is a great choice for fish-only systems or hospital aquariums.