I have a green crack plant almost done w week 4 of flower and the older leaves are really starting to turn yellow. I know its common for the leaves to fade in flower but this is my first time growing so I wanted to check with the experts. It’s in a 7gal fabric pot w FFOF soil and I feed FF trio nutes at half strength about every 3-4 days with occasional plain ph water feedings. Runoff pH has been between 6.0-7.1 during flower and ppm has ranged from 1750-2900. The new sugar leaves are pretty dark green, is there something wrong or is this yellowing fade normal? Thanks!
Mid flower they shouldn't need much nitrogen, but none or too little could still be an issue. Should do a ppm and pH run off test to see where your at with nutrients.
I can't tell if the entire plant is yellowing out or if it's just the camera playing tricks on me. Your PPM is a bit high which makes me think it could be nutrient lockout due to salt buildup. One other thing to keep in mind is the lower leaves that don't receive much light or no light will eventually die off; so that may also be a contributing factor.