BIG PROBLEM

My leaves turned from healthy to this in just one night....The leaves curled up on the edges and the leaves are dry and break into pieces if touched....what is the problem???
Im in late flower and i really dont want to chop it 2 weeks early

Dificiency or toxcity or what is the problem?

Looks like a high abundance of nitrogen for one...dark green shiny leaves...going to need the usual op...conditions, feed/water schedule, etc.
FF

As well op, those things dont happen overnight....I suspect something has been going on ( or possibly not that should) for a while.
May we have some background...makes helping easier.
FF

I water every three to four days and feed them every second watering....i use ghe bloom and bat guano because i am coming to the end in the flowering stage...the leaves started to turn yellow at the bottom but i thought its because of the flowering....i lowered the nitrogen levels now because of the flowering...i was just about to wait one more week or a few days and start flushing but now that happened...i removed the damaged leaves and i hope i wont have to harvest early...other plants are getting the same food and are doing perfectly fine...im growing indoors under 400W hps

FastFreddi said:

As well op, those things dont happen overnight....I suspect something has been going on ( or possibly not that should) for a while.
May we have some background...makes helping easier.
FF

Click to expand...

There is no way this is happening because of too much nitrogen because i have almost cut away nitrogen from my feeding....i noticed this plant was a bit more dark green colour but that was from the start...even when she was just a seedling she was darker than the others