I have six plants in my tent. 11 days since germination. I have the light schedule at 20-4. They seem to be thriving . Germinated and growing in 3 gallon pots of Fox Farms Happy Frog and Ocean Forest. I will start Fox Farms Grow Big (diluted of course) next week. Big Bloom at week 4, and Tiger Bloom at week six. The lights are around 22 inches high. I want to harvest at 68 days and the seeds (Gorilla Glie #4 and Sky Walker ) are genetically suited for this expectation. From what I’ve read on various sites, 20-4 will provide the best yields . Aside from consuming more electricity, is there any downside ?