Yes, hydroponic, with around 1400-1500 watts of lights over 12 plants. I know I should probably have closer to 2400 or something, but, this is what I can manage. As for air, I've got a high power can fan with a carbon filter in the flowering room, along with two wall oscillating fans. For veg, just a stationary fan, and a standing oscillating fan. I'll show pics tonight of my stretched girls. I don't think they like rock wool. I found one dirty SOB thrip on one that was already looking a little sorry, damn that pissed me off. I hope the remaining 9 make it, although one is in intensive care. I put it in a humid dome, in case it's base wasn't going to be able to supply the top of the plant with water. I think I'm going to start using rapid rooters once I get through with this nasty rockwool.