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					Originally Posted by  reef_raf
					 
				 
				Although I recommend really trying hard to avoid temp swings, my tank went from79F to 89F everyday for an entire summer and I only lost one species of acro. Everything else did really well. If all else is ok, I don't think temp swings alone would do it, based on my experience. 
			
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   I think it has been well experimented/accepted that too high temperature causes the coral to expel its zooanthelle.  I don't know about rapid temperature swings...but high temperature is certainly bad.  
		
	
		
		
		
		
			
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				400 gal reef.  Established April, 2007.  3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways,  Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies
 
My Tank:   http://www.canreef.com/vbulletin/showthread.php?t=28436
			 
		
		
		
		
	
		
		
	
	
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