I agree with harley , use H202 every 4 days in the res to fix the brown roots. Get the 30% concentrate peroxide at least not the 3% shit from the supermarket.
You will have to adjust the set up, you cant go on with it burning tops of plants.
Get a small tent for about $50. Always keep leds at least 2 feet away.
Thats right, next time use coco/perlite so you control how much feed goes in with hydro flowering nutes and the last 2 weeks a bloom booster. The soil is causing the early yellowing probably from salt build up.
Transplanting , re potting or re locating is the usual cause of this major issue. All i can suggest is put the other light back over them to reduce this shock which will probably kill them or at least stunt them.
You will have to work it out yourself but it seems the trouble started with the...
the SS and BH will be big growers suited to outdoor.
BK and GB smaller growers but a nicer sweet smoke.
Also you could try Purple Trainwreck and Pineapple Express for monster harvests.
Its a hermie, pull those nanners off, spray the nanners with a small amount of water so when you take them off pollen doesnt fly everywhere. If you see more clusters of nanners harvest the plant.
if its the big ones you can do it with yellow sticky strips. If its the small ones your in trouble, you need to stop the cycle by removing and killing the affected plants. When they start breeding in summer you get 1000's a day and they ruin the crop.
Yes its fucked you have my permission to kill it.
next time use better soil not the crap from the back garden with weeds in it.
It started ok because babies dont need food just water. When the time came for eating it starved in that dirt your using and god only knows what the ph is.