I haven't seen anybody mention air stones yet, so here goes... GET AN AIR STONE GOING IN THERE! To the left of the lamp stand of the aerogarden is where you can lift up and check our pH levels and whatnot, so just open it up, run a tube in there, attach an airstone, and voila, no root rot. 1 little air stone at the front should be fine, but if you really want to get snazzy, then you could put a 2nd one in the back as well. That way your water is full of oxygen. Your plants will love it, and start trying to direct a huge chunk of their roots (once they start reaching down into the water) to get as close as possible to the air stone(s). Oh, I also forgot to mention that it's easier to germinate in a rag first and then bump it into the sponge with the emerging root (or better yet, hopefully it's discarded it's shell) nestled down into the sponge.