It's not hippos, it's hypo for hyposalinity.
 
I think the affected fish are copperband and cleaner wrasse.
 
Once ick is out of a tank and the tangs are free of it, it will not return.  I had a hippo tang and of course it got ich at the beginning but after treating him with hyposalinity it never returned, not even in periods of stress.
 
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					Originally Posted by  Leah
					 
				 
				Damned hippos 
			
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