yep, just water with ph'd water for now. i recommend watering until the soil is soaked (a couple drops coming out the bottom, not running out), then wait until they are very very dry before watering again. i use miracle grow (even though everyone curses it, i like it). i would say start feeding them at 5 weeks or so. start at 1/4 strength and work your way up to full strength. don't feed every time you water, only feed every 10-14 days. also, when you feed, give them a bit of plain water first so that the roots are shocked by the nutes and end up getting burned. i also like to vary how much water i give my plants. get them really really wet one feeding, then just about half that amount next time. i don't know if this is recommended or not, but it's been working for me!