sounds like you need to cool the grow space. Tomatoes or cannibis if its too hot you will burn them. try to keep it around 75F and about 50% humidity. You might want to consider going to a couple of 2ft T-5 flourecents. I veg all my plants using them with great results. Should work for you as well. They put off very little heat so you can keep them close. Are you using neutrients? The soil in the cups is it store bought or did you just get it from your yard?:rasta: