DesperateFarmer
Active Member
So I got some Granddaddy Purp going in to week 5 and aside form some purple stems its all nice and lime green. I looked at purpinator and thought I can just push Epsom and MPK myself. So the obvious answer is cool em down. So I'm pushing 85 degrees (AC at 82) with lights wide open, (1500 PPM co2), with a 72 night temp. So I am chasing a 10 degree spread. The question is, how low can I go before I have other issues. Ideas?