growth stages

  1. Blossom21

    Is there optimal amount of light that you can give for photoperiod plants? 18/6 to 24 hours? And when to swap?

    Just like thhe title says, how much light would be the optiomal in the start to start growing for photoperiods, or is there such thing? I've always used 18/6, but i've seen people using 20/4 or even 24 hours at the start. I'm already at the second week with 18/6 and they seem to be at least...
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