Fin Rot?
			 
			 
			
		
		
		
		I have a purple tang, and I have noticed what looks like a bite out of his tail, and a couple on his top fin. Would this be fin rot? I have checked nitrate, nitrite, salinity, ammonia, and calcium, and all are within normal parameters. Is there anything else that could be causing this? He does have some tank-mates, a blenny and 2 small clowns 
		
	
		
		
		
		
		
	
		
		
	
	
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