I started my plants on a 24hr cycle under a CFL lamp. I have 4 three week old plants and two two week old ones. I germinated in two batches one week apart so the younger ones are a wee bit smaller. How soon should I drop the light cycle to 18/6 or 20/4 periods? I've read a lot of info but a lot of it, I've realised, can be contradictory. Do I need to drop it to say 18/6 or can it be kept at 24/0 until flowering? If I do need to drop it should it be done gradually over a few days or can I just do it?
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