i personally wouldn't risk it. 
U currently have a 220 gallon with 2 x 4's? 
I wouldn't have even risked that...lol. 
I was worried about a 230 with 2 x 8's. 
Guess I don't need to worry. 
Neal 
		
	
		
		
		
		
			
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				Way too much time and money has gone into this hobby....and yet, I CAN'T STOP
			 
		
		
		
		
	
		
		
	
	
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