Success with tap water

[Piscez]

I used tap water and prime for 5 years, during that time I had two crashes, minimal coral growth more losses than gains, regular cyano outbreaks etc. Changed two things only kept existing flow, cheato, filtration,skimmer etc and rock formation and decided to go back to RODI ( which I had one a former tank in a former residence) bought it on ebay for $100 5 stage, no issues since had ti for a year now and excellent coral growth. I wish I could say it was all down to the RODI but I also discovered my lighting par was in the toilet at the same time so I had to change my little two, but the combination of the two solved all my problems. I do get some algae on my glass but I put that down to light coming from my window and I tend to have my lighting bright for long sessions. IMO rodi is a no brainer, all the best tanks I've seen in the lower mainland use RODI's far outweighing those that don't. Best of luck to you