HELP! Purple leaves on plant w/ PICS

Hey RIU I have a plant thats about 45 days into 12/12 and something seems to be wrong.

On just one plant a few leaves are turning a very distinct purple with some dead tissue, Im including pics. Im fairly new to this so if you guys have any advice please post it.

Strain: ?? Bagseed
Nutes: GH Flora, KoolBloom, Molasses
Temp:85-68
Humidity: 20%-50%

Thanks and always +REP for good advice.

Nearing the end of the flower cycle causes the plants to draw upon the nutrients within the leaves. This is true to some degree. I used a nitrogen deficient bloom nutes that caused the same reaction. This looks very similar. All over MJ forums you'll find that it is 'normal' to have dying fan leaves when nearing the end of the flower. In my research and Uncle Ben's insight, it's the Bloom formulas that do not provide enough N during flower causing the leaves to die. As UB once put it, "healthy fan leaves make for healthy buds".

I've seen many other flowering plants late in the flowering cycle showing this colouration and I think Nitrogen is the culprit here.

Good info +REP

Hey man, thx for the rep, much appreciated I meant to add that your ladies are lookin absolutely delicious!

Think of it like fall.. The leaves turn pretty colors and so does MJ. Its essentially the same concept. Some will argue that purple leaves is because of bruising due to colder temps. Hope this helps!