To treat "ich" disease (ichthyophthiriasis) of freshwater fishes and "marine ich" disease (cryptocaryonaisis) of marine fishes, add one (1) teaspoon (~5 mL) of Ich-X to 10 gallons of aquarium water.

For Best Results:(1) always treat in a separate quarantine/treatment tank, (2) remove activated carbon from filters and clean or replace mechanical filtration media (do not stop filtration!) (3) make at least 1/3 water change before each addition of Ich-X (Once you've conditioned your new water (4) repeat treatments at least every 24 hours, but no more often than every 8 hours, depending upon the course of the disease (refer to the Ich-X Product Data Sheet.) 

Ingredients: water, formaldehyde (<5%), methanol (<2%), malachite green chloride (<0.1%) Recommendations: Use Ich-X to treat conditions related to ich and ich related disease. Caution: Do not use Ich-X with any other medications. Do not use with sulfinate-, or sulfoxylate-base water conditioners. Ich-X may permanently stain silicone tanks and sealants, rocks, concrete, plastic objects, clothing, laminate counter tops, floors, furniture, and carpeting. Ich-X may be harmful to some invertebrates (e.g. filter feeders); use caution and observe carefully when treating aquariums with invertebrates. Immediate 50% or larger, water changes (using Ultimate to treat the replacement water) should be performed if stress is observed among treated animals.