View Full Version : RO top off
Fishguy52
12-09-2010, 02:00 PM
are most ppl out there just topping off with RO water with no salt ? is there any problem with the difference in PH ?
when you do top offs, u only do freshwater.. when water from you tank evaporates the salt doesnt, just the water does.. so u just replace that water with fresh.
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