If under an HPS, and with a 1k HPS I'd keep it pretty far away from the canopy to begin with, you'll get much more stretch than you would with a MH. Generally, within the first week of being under 12/12 with an HPS, my side shoots nearly catch up to the main cola area. This isn't always desirable, but for taking clones, it's my preference.

Take care. :jointsmile:
Mr. Clandestine Reviewed by Mr. Clandestine on . Taking clones from unknown sex-finding a mother I have 12 plants grown from seed (different strains) that are about 1 month old, 6-7 inches tall, with alternating nodes. They are under a 400MH. The purpose of this run is the find a mother plant. Now, should I pinch the tops of the plants to encourage more branching, take a clone, and flower them, removing the males. or Put them into flowering, take clones from the females that show, vegging the clones until the doner plants finish flowering. or Take clones of all the plants now, Rating: 5