Hey guys, Just to give you an update on my PC Grow. Im not too sure if its going good or bad or just OK?

The taller is at day 37, still not into flowering even tho its auto flower, and the other is at day 33 also not flowering, and no pistils that i can see?

Also as you can see from pics the lower leaves are gettin takin by the colour yellow and brown in spot form. Iv decided i need to add something but not sure what? Any ideas?

The temp, air circulation, watering and PH is all stable. Using plagron royalty mix as recomended, and no nutes have been added? You think i need something?

i NEED HELP :-(