causing "velvet" or "gold dust disease. ''7,8 Amyloodinium has a complex life cycle reminiscent of the ciliate Ichthyophthirius and thus requires prolonged or repeated treatments to clear.
The ability to survive intestinal passage further complicates control. 6 The organisms are difficult to treat but have responded to osmotic treatments, copper (especially in saltwater), formalin, and possibly quinine compounds and metronidazole.1