I was just curious.. Since I will be soon setting up a small(5-10gal) nano, and have no other SW at the moment, I was thinking of setting it up with the prepackaged seawater we sell at our shop. What are yall opinions on this? I've yet to bust one open and test it, but it advertises that its nitrate and phosphate free, etc. Just purified sea water. I'd be paying like, 8 bucks for 6 gallons of it, which is fair enough IMO although I know you can go buy RO water for cheaper... But I figure it's nice and easy for initial set up, and weekly water changes..