I'm debating this also, currently doing:
Water, Dry Day, Dry Day, Dry Day, Water. May have to remove a dry day as the last watering day, one of the plants was looking very sorry for herself, but perked right back up after a drink!
I'm going to water the plant that is stunted today, after...
I prefer to tuck them big fan leaves, they hold tonnes of nutrients the plant needs, not just the photosynthesis. Being autos they could do with as much stress reduction as possible. From a personal perspective where I have trialled cutting fan leaves off on my current grow, the plant which had...
When did you last feed nutes and at what strength? What medium are you using? What was last PH run off?
There's a question/answer sticky, use that, post back here and people will be able to better help.
My first impression would be nute burn.
Sounds good, that's what I'm doing - a 5500k 125w CFL on each plant, rotating the pots!
What size tent/closet are you using?
*EDIT* Nvm, just seen its a 4x3! I've only got a tiny 2x2 :( But I'm hoping I can veg 2 flower 2 in there, time we tell!
Just thought I'd give a little update on this.
I flushed affected plant with 7L of water total, with some calmag in. Adjusting the PH each time (after checking runoff).
So far so good, new growth lovely and green, no new rust spots. *Fingers crossed* it stays like this!
Will be giving her her...
2x 450w for 2 auto plants is gonna be overkill haha!! Would be great to have one of those LED panels facing sideways though, giving each side of the plant around 6 hours each of light - Good if you have the time to sit and rotate in them intervals! Would imagine you'd get some amazing side colas...
What are you going with next? I've got some Amnesia Gold Autos that I'll plant this weekend.
Are you planning on growing yours in intervals for faster harvests?
PS. I'm super jel of how exposed your bud sites are. Mine are a jungle, so much tucking and pulling, definitely stressed mine out trying to get as many bud sites out as possible!