How much are you watering? Whats the ph of the water you are using? Godsgift looks a little N def. also you should either take out of the clear container or light proof it with some tape. Roots like the dark. The brown spot on the platinum kush could be from maybe dropping some nutes on the leaf? I only see that one spot thats why im guessing that. This is all guessing considering you havent filled out the trouble shooting form. You should fill that out and put in plant problems section for a more accurate diagnosis. The people on here will get you going in the right direction given the right info on your grow. Oh yea good job on getting more light.