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I do 20% every two weeks on my 55 gallon I'd suggest you pick up an RO/DI unit and just mix it yourself.
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Jimmy C.
Elos 70 (30"x22.5"x20)
Semi-Cube (36"36"x24" old setup)
DIY Stand Build Thread
http://reefcentral.com/forums/showthread.php?s=&threadid=1207997
Last edited by beerguy; 04/03/2009 at 04:05 PM.
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