ive always liked 65-75 for temps and 60-65 at lights out towards the end to bring out the colors. 2000w is not going to reach the bottom half of a 4-5 foot plant. sk1 is an easy grower and can get long thick citrus smelling buds of stickyness. what medium are you using? do your roots have ample room? look at your roots if possible or at harvest, do they look healthy and white?


meded, quality organics