EXIT is very effective in treating white spot disease. It doesn�t contain copper and is safe to use with shrimp, snails and scaleless fish. White spot can be recognized by white spots on the body & fins and / or the fish rubbing and scratching against (hard) objects. eSHa EXIT distinguishes itself from other products by also treating �velvet� disease (Oodinium), as well as �Ich� parasites (Ichthyophthirius).