Yeah they are pretty tall i guess due as iv left the cfl about 15-20cms away from the small plants. They have approx 6 leaves each and due to my fan giving them a low breeze some of the stems are a little weak i think??? . Temps fine and so is humidity. So i guess its cos im useing the cfl 160w lamp still. Cfl worked well in the 1st stage of growth but now im thinking this weekend put on the 600w hps but from a distance approx 1 mtre. What do you think. And iv also been running 24 lights and 2nyt iv changed them to 18/6 after 3 weeks coming straight from germination in soil.