i believe i'm just going to build the same system i already have, it's pretty simple, very few things to go wrong with my system. easy to change the resevoir, no moving parts except air and water pump. it's pretty idiot proof. anyways, plants are doing great, just lst'd them tonight. will post pics tomorrow. Stinkattic, was wondering something, if i were to buy some of them very small airstones from like wal-mart, and carefully sealed them in the plant tray around where the pots would be sitting, and set the air pump to come on for the 15 mins. the water pump is on, would this be much more beneficial to my plants oxygen uptake than just filling and draining and only having any oxystone in the resevoir?