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					Originally Posted by Azilla
					
				 
				Do u know how many of them i would need for a 75gal tank??? i have 4 1200 Maxi in it right now/. 
			
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 I just got two 820 for my custom 100gal that is 4ft long and I think it is just perfect with the addition of the return pump (1800g/hr).  
I think you would be okay with two 820's.
Had it for a day and love it....just wished the cord was longer.