I had the same thing with me SOL, I turned the light down quite low, and now its fine, I would assume that a pretty good T5 unit if thats the case, I would suggest to keep it low, the lower the better, then slowly raise it a bit each week til you have it where you want it. 
		
	
		
		
		
		
			
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				I'm not 'fallow' you must be talking about my tank!
			 
		
		
		
		
	
		
		
	
	
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