• Effective anti parasite treatment
• Treats White Spot, Costia, Chilodonella and Oodinium
• For best results use in conjunction with Kusuri Malachite Green
• 75ml treats 1000 gallons




Kusuri Formalin 30% is best used in conjunction with Kusuri Malachite Green for the effective treatment of most single cell parasites including White Spot, Costia, Chilodonella, Oodinium and Protozoan Parasites. Kusuri do not recommend the use of Formalin with any salt solution.

75ml per 1000 gallons of pond water.

The normal course is 3 treatments, 5-7 days apart. Switch off UV steriliser until course of treatment is complete.

Slowly apply to the pond over a 1 hour period; this will prevent shocking the pond with a highly concentrated dose.

Do not use below 12.5°C.

Kusuri Formalin 30%