Ok, thanks for all of the help, to answer a few questions, I have the 4 ft. 4 bulb above the plants, and I have the 2 ft. fixtures toward the bottom on all sides, so I think I should have good lighting, even when I go to flower, and probably won't need to SCROG. When I open the closet it's like looking into the sun!!! I'm using 2 5" air stones in each tank, so I'm getting a lot of bubbles and think I'm good there also. As far as water goes, I've just been using PH'd Tap water with the 3 part general hydroponics Flora nutes. at this point I've got extra totes, so when it's time to change water (which I do every Friday) I just pull the top off and put on an empty container, I then empty the old water, clean out the tank, and then replace with new PH'd, nute mixed water, and then put the top back on the original container. I know it seems like a lot of work, but things are growing well, and I'm kinda financially exhausted at this point until harvest time. I'm looking to try to veg the plants up to 24" and then switch over to flowering, at this point my babies are about six inches... what would be the best time to "pinch"? again thanks for the help.:thumbsup: