protomarin coral is a special treatment for marine ornamental fish against skin parasites such as oodinium ocellatum (coral fish disease), Cryptobia, Brooklynella, Trichodina and Cryptocarion. Visible signs are whitish-grey to dark, satiny film or barely visible dots which may spread to the gills, fins and the entire body in a later stage. The gills remain open and the fish shows signs of increased respiratory activity, ranging up to respiratory distress.

protomarin coral is tolerated by invertebrates like corals, anemones, snails, mussels. protomarin coral is used especially for the initial stage of infections and slight diseases.