[Taras1]

Samster -- Both NATIVEVAMAN (Dale) and NAS have years more experience than I do. Each live in areas completely differant with respect to the local water supply (PS: as I do). I do recommend, as Dale does, get a reliable RO/DI system for your water. I have to agree with Dale -- unless you really know what you are doing with additives, such as Ca, Mg, etc., be very, very careful when it comes to adding them.

More importantly, have patience. TIME is really the greatest and best additive.The seas are millions of years old. Your 90 gal tank is a microcosm. Give it time to balance - you will never replicate the conditions in the wild. I like Nilson's book Reef Secrets where he states that the water in your newly started aquarium will be vastly different than that in your aquarium five years, or even a year from now.