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ProForm-C is the preeminent broad-spectrum malachite green and formalin treatment. These two ingredients are more effective in combination than if used individually. ProForm-C is formulated with malachite green chloride. Other products use the oxalate salt formula, which is more toxic than chloride.

ProForm-C Benefits:

  • It is the safest and most effective treament for the control of diseases caused by Ichthyophthirus, Costia, Trichodina, Chilodonella, Oodinium, and fungal infections.
  • The ONLY malachite green and formalin treatment that can be used in water temperatures as low as 50 degrees (F), allowing treatment in early spring and late fall. Other treatments cannot be used in temperatures under 62 degrees (F).
  • Treatment is daily. Other malachite green and formalin treatment dosage is once every three days. Daily dosage allows the completion of the treatment in three days instead of nine days with other products.
  • You do not need to bypass your bio-filters, which allows a more comprehensive treatment of the entire pond system.
  • Less toxic to Koi and goldfish than any other malachite green and formalin product on the market.

CAUTION: Do not use salt with ProForm-C.


  • 1 quart treats a 3200 gallon system three times.
  • 1 gallon treats a 12,800 gallon system three times.

*This item does not qualify for free shipping.

1 quart $23.95
1 gallon $62.95



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Sock Net with Bag

Books by Mamoru Kodama

Koishi  |  Kokugyo 1  |  Kokugyo 2