Anti-Parasite Treatment for Koi
Treats: White Spot, Trichodina, Costia, Chilodonella.
When to use:
Formaldehyde 30% is effective against protozoan parasites. It is especially useful in treating parasites because of its ability to penetrate mucus and reach the parasites that would otherwise be protected from other bath treatments.
Formaldehyde can also be used in combination with Malachite to treat protozoan parasites.
Test your water quality first using Pondlab test kits.
Product should not be used if you have Orf, Rudd & Tench