Kusuri 30% Formalin and Malachite Premix is a ready to use full strength formulation, popular as a pond-wide anti-parasite treatment.

It is particularly good for White Spot, Skin Flukes, Chilodonella, Oodinium and most Protozoan Parasites.

Dosage: 100ml per 1000 gallons (4546 Litres) of pond water.