Im buiding a 3ftx3ft grow room that is 4ft tall out of ply wood and sheet rock, im putting 2 fans one for intake and one for out take, i have organic soil, fox farm nutes for after one month of veg, using a 400 watt hps for flowering, plan on growing 20 plants in pong cups and figure ill get like 7 females from bag seeds out of 20 bag seeds growing. My question is, how many 65k cfls will i need for good veg lights. Also If i veg for like 1 or 2 months with cfls then flowered with my 400watt hps in my grow enviornment what do u think my yield would b.