Marine ich (Cryptocaryon): diagnosis & treatment guide
Marine ich, most often caused by Cryptocaryon irritans, is one of the most frequent parasitic diseases seen in saltwater aquariums. It can spread quickly because the parasite’s life cycle includes a stage that leaves the fish and persists in the tank environment. For that reason, successful treatment usually requires both accurate diagnosis and a plan that accounts for the parasite’s full cycle—not just visible symptoms. Owners often first notice subtle behavior changes before the c... Read more »

















