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Kusuri Formalin & Malachite Premix

Kusuri Formalin & Malachite Premix

For the effective treatment of most single cell parasites including White Spot, Costia, Chilodonella, Oodinium, persistent Fungus caused by Saprolengia and Protozoan Parasites.


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Product Description

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.
Do not use below 12.5°C (54.5°F).
Please ensure that you read, understand and follow all Health and Safety guidelines on the bottle. Please do not eat, drink or smoke whilst handling chemicals. Wear disposable vinyl or latex gloves and appropriate eye protection.
250ml treats 11,365 litres (2,500 gallons) 
500ml treats 22,730 litres (5,000 gallons) 
1 litre treats 45,460 litres (10,000 gallons) 


Use 10ml per 454 litres (100 gallons) of pond water. Treat up to 3 times, 7 days apart.

DO NOT OVERDOSE. Over dosing can cause fish fatalities. 

For use above 12.5°C (54.5°F)

How To Use

Switch off UV steriliser until course of treatment is complete. Tighten cap and mix well. Use cup supplied to measure the correct dose. Add water to a clean watering can, then add KUSURI Formalin/Malachite Premix. Gradually sprinkle across the surface area of the pond over a 1 hour period. Do not use below 12.5°C.

Do not use KUSURI Malachite and Formalin Premix in conjunction with salt.

Stop feeding during the course of treatment because KUSURI Malachite and Formalin will reduce the bacteria in the filter, continuing to feed will cause an ammonia spike.

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