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					Originally Posted by reef_raf
					
				 
				Sam, I'd say that is a swing. pH numbers and temp numbers are a bit different. My temp runs about 79 to 85 daily, and that uses 5g of evaporation also. 
My pH stopped swinging right about the time I stopped measuring it    
			
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 Does your salinity move much with that much evaporation Brad ?
Cheers