Quote:
Originally Posted by CM125
It seems the results are quite in favour of using it, although I wish more local people would chime in.
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You don't need locals to chime in, lots of people in Calgary use tap water. It's fine, almost always. It's "what if" you need to think about. Or, you want the absolute best you can get and don't mind spending a couple hundred bucks. Can you run a reef without RO? Sure. Will it be fine forever? Ya, likely. Will something in the water kill all your corals one day? Could happen
So you decide how much risk you're willing to go with.