Quote:
Originally posted by ricks
... I use unfiltered mud puddle water, has worked great for many years.
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Hahah!!! Awesome...
No seriously, you can have some (or even a lot of) luck with tap water. I personally have 75 TDS water and used it for a while (~2 years) with some success and some problems. (hair algae, general coral unhappiness). I have since switched to RODI (almost 1 year) & my tank has had a much higher success rate. The only way to know exactly what is going into your tank is to use an RODI and strip the H2O down to 0 TDS and build it back up with supplements. It is possible that in some areas tap water has the perfect chemistry for use in a saltwater tank, but I am not willing to risk it. At least at 0 TDS, you know what is there, nothing... Good luck though with the tap water, I'm interested to see the progress.