speaking of.. when is it time to move my plant from the 1 CFL to the 400 watt MH light?

its a week and a half now, pics above
noty johnson Reviewed by noty johnson on . so i bought the "Aero 4" aeroponics setup Looks a bit small to bring 4 plants to maturity, but i want to grow fairly small plants anyway so we'll see. Also a bit worried about roots becoming intertwined, but maybe it doesnt matter since they will all 4 remain their the whole time anyway. I realize most people use this thing more for a cloner than a long term solution What media would you guys recommend? I'm starting in rockwool cubes and i will transfer to the aero 4 system when the roots are coming through. I have a 400 watt Rating: 5