Originally Posted by hackteck
i really think it depends on the city water quality because some people use tap water and have no problem others have algae issues but i do think spending money on an RO
unit at the least is a very sound investment
Reef - tap water = A, have you ever seen a corral reef around garbage :-( it just doesn't work.
There are way to much chlorine,metals,phosphate, and other crap that is not good in saltwater....
And if you thinking about a reef tank there's no way it would work...most stuff in tap water will kill or stump the growth of your corrals---- btw I don't even think you can put SPS
corals with tap they would just die.......
Investment best way.