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I am trying to identify the attached that I saw only a few times in my reef tank. I need to know if it is harmful or if it is just part of the Eco system of my tank. Any help that you can offer I would appreciate it.
How big is your tank? Wrasses will sometimes eat them but that is never full proof. I'd try manual removal and dipping them first if you actually see any on it. The fact it was on your glass means it may not be a coral eater