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					Originally Posted by  fishytime
					 
				 
				Is buying bottled RO or DI water from the grocery store not an option? I started my 20g with tap water and promptly switched to store bought RO. Since then my algea issues have been slowly going away. I find that with a 20g tank I only use about a bottle and a half of water a week( between top-offs and my 4g ish water change) so it only costs about $7. 
			
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 I can only wish I was so lucky as to be able to do that. The "RO/DI" water from the local store is horrible, it has a high TDS reading, thus making it unfit for use. My tanks have almost always been run with RO/DI, so this tap water thing is kind of new for me. 
My tank current evaporates between 4-5g per day due to the heat in my suite. Then there is the ~10g water change I do each week. I would be going through a good bit of water each week. 
You did give me an idea though, perhaps, if I can't source out an RO/DI system that works with my exisiting taps, then maybe I'll look into having water delivered from a water company. Thanks for the idea!