I have a plant around 2 feet tall, in the preflowering stage. Now, all growth has haulted, and the leaves on the bottom are curling inward. This curling is now spreading to the leaves just above it.... and they have this weird dark green/grey coloration.
I have it under one of those compact floresent lights, before anyone asks.
Could it be toxticity? Overwatering? Underwatering? omgomgommg.