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			#21  
			
			
			
			
			
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|   As posted earlier, yes. IF your air pump intake is drawing from outside. | 
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			#22  
			
			
			
			
			
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|   This should have no effect if you are running a skimmer. The skimmer will equalize the water chemistry faster than any air pump. If you don't run a skimmer, that would be a good starting point. |