Black Ich (turbellarians), Fish, Parasites, Saltwater, Saltwater Treatments Parasites, Treatments Posted on April 6, 2024 by MichaelHF Black Ich (turbellarians) Common Tang Disease Black Ich (turbellarians) Turbellaria flatworms Black Ich is a very Common Disease in Saltwater Fish and Tangs are Magnets for it Black Ich (turbellarians) What You Need ... Continue Reading