My hippo tang is out and about all day long until night time.  If scared the Hippo will hide within the rock work.  I may have lucked out as my hippo is not aggressive and has been in he tank since the beginning (around 6+ inches).  The only thing is she will fly around at the top of the tank and will occasionally splash. 
		
	
		
		
		
		
			
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				300g Basement Reef - April 2018 
			 
		
		
		
		
	
		
		
	
	
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