I have 2 t12s 4 bulb and a t5 6 bulb all three are 4 footers I have a nice sized ossilating fan and a box fan. I have 5 seeds in 3rd week from seed vegging in 1gallon pots lst training them now till sex shows then pulling any males. Fimmed three of them other 2 are slower growing. I have the t5...