Blagdon koi anti parasite uses a number of active ingredients to create an effective and safe treatment that acts against white spot slime disease protozoan parasites costia sp trichodina sp chilodonella sp flukes dactylogyrus sp and gyrodactylus sp and also velvet parasites oodinium spr this is a five day course of treatment that builds an effective dose in the pond whilst minimizing stress on the fish the five day course also ensures that effective levels of active ingredients