Treatment Type: Medications
Rated for: Swordtail
Norristown, Pennsylvania, United States
Posted Jan. 10, 2019
Formalin is stabilized formaldehyde. It is a very effective treatment for Ich. You'll sometimes find formalin plus malachite green medications. This is even better! Follow the directions on the bottle. You'll have to use several doses since Ich can only be killed when they hatch out in the gravel and swim toward the fish host. Remember to remove activated carbon while treating with a formalin product.