I never went out and got a reverse osmosis filtration setup. But I had old tanks lying around, so I built my own tap water filter, and would like to know from the experienced reefers if if they think it is sufficient. I basically took an old 10 gallon tank, put two HOB filters on that are each rated for a 20 gallon tank. One has activated charcoal and ammonia remover, the other has bone Char carbon to help remove fluoride, and I added a small UV sterilizer to the tank. I let it run constantly filled with tap water, and when I need water for my saltwater reef tank, I just scoop out of gallon and basically dump it into the saltwater tank. I get constant filtration of the tap water multiple times a day in the entire 10 gallon "tap" tank, and the UV sterilization also. Is this equal to reverse osmosis or at least close enough that the tap water I'm getting out of my 10 gallon tank filter is good enough to go straight into my saltwater aquarium?