I know some people swear by using tap water but there's just too much unknown about whats in it. Calgary has trace elements of copper in ours which is a huge no-no for a reef. I'm sure Edmonton is the same.
Go online and check out J&L or similar stores to see what they recommend. Then you can pick up something locally if you want.
The water is a big part of hair algae but don't forget other factors like old bulbs, overfeeding, high nitrates, lack of a clean up crew, etc.
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250 gal display tank plumbed directly to my wallet
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