For use in marine/reef tanks only Stop parasites is against lchthyophtirius, Oodinium and Chryptocaryon. it is safe for all marine invertebrates and bacteria, does not contain copper.
5ml for every 100ltrs
then every 3 days that is on day 1, 4, 7, 10, and 13. for very heavy cases of disease double the dosage after the first day