I have about 2 dozen clones in humidity dome. They are under a 4 tube 2x4 t5. How far away should the light be? How many hours should light be on? Thanks any suggestions would be helpful.
Light cycle is 18 / 6 like vegetation however i have done some test using 24 hours for the first 2-5 days which also is effective. The light should be between 12'' - 18'' above the top of the dome.