Kusuri Formalin 30%

Sale price£17.00

Kusuri Formalin 30% is best used with Kusuri Malachite Green for the effective treatment of most single cell parasites including white spot, costia, chilodonella, oodinium and protozoan parasites.


Switch off UV sterilizer until course of treatment is complete. Tighten cap and mix well. Measure out the correct dose. Fill a clean watering can with fill with pond water, then add Formalin. Gradually sprinkle across the surface area of the pond over a 1- hour period.

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


  • Use 75ml per 1000 gallons (4546 ltr) of pond water. Treat up to 3 times, 7 days apart.
  • Do not use with salt.
  • Do not use below 12.5°C.
Size: 500ml
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