i get the Carib-Sea Ready Water at PetSmart.. yea, yea.. some folks think the pre-cycled water is a bunch of hooey, but the water where i live tastes horrible, smells even worse, and makes my throat hurt if i don't filter it twice. and i still won't drink it, even after it's filtered. it leaves a white filmy residue on everything, and even the cat won't drink it. i'll be darned if i'm gonna plonk my babies in that <censored>.
makes water changes a snap, too