Ok well i started to germ my seeds 2 days ago and out of 16 i already see 8 tails. my room is 3' x 5' x 7' have a 400 hps hortilux bulb, 170 cfm inline fane, 4' carbon filter, passive intake. was planning on switching to a 600 but i wanna see how this 400 will do. here are some pics from outside...