My plants have outgrown their current 6.5'x5'x6'. I currently have two 400w w/ open reflectors, 6in exhaust fan connected to a 6" inline fan w/ filter & muffler, 2 oscillating fans, A/C bein pumped into the room on two different sides keeping it at 74 with lights on; 70 off. It has become very difficult tend to my 6 plants unless I take them out of the tent one by one. Three are at 41 days flower and the other three are at 21 days flower. All six ladies are 4' - 4.5' I'm thinking that I could split the plants apart, each 4x4 tent with their own 400w light, fan, etc but I do not want to stress them too much.