thanks for all of the advice. I guess I should have been a little more clear. Right now I am using one light for veg and one for flower, I had 18 plants from seed and ended up with 8 females there is plenty of room for just 8 plants. My problems arises that I have this beautiful 1000w light and ballast with vented hood just sitting there collecting dust. I took 30 cuttings from the females and have 25 that are gonna make it "fingers crossed" I don't need the 1000 w MH I figured out so I want to just use the lights for flowering and increase the size of my flowering room. once agian you guys rock and thanks for the advice.