Hello all - After several mechanical issues I'm back trying a new, small project for a client. Same Hydro set-up, 400w air cooled lamp, fogger, drip to hydroton. Feminized Lowryder Diesel autoflower.

Here's the situation: After close to 3 weeks at 20 hr./on 4/off lighting the girls just seemed to be getting taller, so I switched the lights to 12/12 hoping to 'force' flowering and limit height. (the grow box is only 3 feet tall)

It's been 7 days since the switch and I see no sign of flowering as yet. My question is perhaps when I should have asked BEFORE switching light cycles...

Will the change in light cycle make a difference as these are autoflowering beans? Would it be bad for the plants to change it back to 20 on/ 4 off?

Perhaps these are silly questions. My first 2 projects went very well, then I had multiple issues with the next 3 or 4. Mostly mechanical problems I was not prepared well enough for. (no spares) I'd like to be able to produce for my client. Fortunately she has other resources, but she is a friend and I'd love to get this done right for her.

Any help greatly appreciated.

Thanks, mrmcr2
mrmcr2 Reviewed by mrmcr2 on . Autoflowering Lighting Question Hello all - After several mechanical issues I'm back trying a new, small project for a client. Same Hydro set-up, 400w air cooled lamp, fogger, drip to hydroton. Feminized Lowryder Diesel autoflower. Here's the situation: After close to 3 weeks at 20 hr./on 4/off lighting the girls just seemed to be getting taller, so I switched the lights to 12/12 hoping to 'force' flowering and limit height. (the grow box is only 3 feet tall) It's been 7 days since the switch and I see no sign of Rating: 5