Lower Leaves not Looking good once “Flipped”

Hello All, I have three auto’s from FastBuds. They have all just came into flower and the lower leaves are starting to, burn, I think? What do you guys and girls reckon. Any hep would be greatly appreciated.

Any nutes? What is your watering schedule and light schedule? Rh and temps day/night? Lighting being used also. Thanks!

They have not had the best of home/owner first of all :joy: but they have had a local version of the clackamas coot recipe. I have a new picture of the progression. Thank you mate

Marshydro tsl2000 in 2x4 tent