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View Full Version : RO tapwater filter


lachlan
Sat Mar 17, 2007, 09:05 AM
i was just wondering *again* how nesecary a RO unit is for keeping discus
my tap water paramaters are GH ~ 7dH, kH ~ 4dH
samir
Sat Mar 17, 2007, 09:06 AM
with your water unnecessary IMO