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	That is quite interesting.  I've never kept a fish tank, myself (well, I once had a Beta for a couple of months, but no aeration required for Beta).
		
			
			
				
					  Originally Posted by eugmac   btw, air pumps aerate aquariums far less from the bubbles in the water than the breaking of surface tension at the water surface when the bubbles pop. in fact a filter which has a water outlet pointed near the surface which causes lots of waves is a far more effective aerator than an air pump. Thanks for the clarification.
 
 On the pee-splash question: I am intrigued, but have no idea where to begin with this.  Nonetheless, I will begin.  I'll keep you posted on my progress.
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