What's the evaporation like in a heated outdoor pond given our relative humidity at "negative 10%" in the wintertime?  Do you drop in buckets of water or do occasional water changes?  (I don't have a pond so I actually have no idea how you guys do it?) 
		
	
		
		
		
		
			
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				 -- Tony 
 My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills.  Whee! 
 
			 
		
		
		
		
	
		
		
	
	
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