Thejoeybrown
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Ya see so we are on the same page. I keep my temps as 76/68.I used to always run 76/73. Been running 77/68 noticed trichome increase with the cooler nights at least thats what I think lol Not 100% sure, always trying to figure it out too. Honestly I like to run warm through week 7 then drop cooler that last 2 weeks.
I will let it get to 65 without turning a heater in but it’s rare. I do think a slight temp drop at lights out helps but I’m talkin when temp swings are more than about 10 degrees I don’t think that’s optimal for growth.
I’m actually right with you on your thinking.
I just don’t think dropping temps to low 60s or lower to get some purple is making the harvest any more potent or grow as much. If anything I think it slightly hinders it. But the colors are nice to look at.