Dark Devil, when to harvest?

I don't think your ready to harvest for a bit. less intense more frequent waterings is optional in my view. but may not work as well for you. Keep up with the feeding schedule for your brand of nutrients and it should do well. Sometimes you can get away with 1/2 or 1/3 the suggested strength depending how concentrated it is. Autos also don't requite as strong as feeding as photoperiods do. Best Of Luck!

You still have 2-4 weeks left, start thinking about harvesting when your plants have 95-98% brown pistils, this will out you in the 10-30% anber trichome zone without having to be too pernickerty. Hope thios helps, Organoman.

Grow looks pretty good. I would back off the grow, and Micro in flowering. Npk ratio in flowering is 1-2-3.

Your grow looked pretty good to me. didnt go too hard on the nutes too soon, and went easy on the water- good job. They look great for week 9, but a bit longer yet. I know devil Autos are meant to be fast, like fast fast.. but they got a lil more to go yet. You are still yet to get any leaf fade so you can go another week easy if not 2 weeks more. wait til the bottom leaves at least start to fade and die away a bit... Generally a safe bet to know its not too soon, if you dont wanna squint at tri's under a jewlers lupe that is.