Due to budget constraints, this is what I have: 2 x 24in. fluorescent lights mounted over the plants 2 x 48in. fluorescent light fixtures w/ 2 bulbs in each (4 bulbs total) mounted vertical, one fixture on each side. All of the lights are "grow lights" which put out more red and blue spectrum. They are all in a small 36"x36" closet with 2 shelves. I just planted 10 germinated seeds a week ago and have been leaving the lights on 24/7. Is this too much? Should I wait for the plants to mature a little bit more before I leave them on 24 hours per day? Right now, the plants are already about 3 1/4" tall.