Can someone help identify this problem?

[nemgrower202]

Hi
I'm 2 weeks before harvesting and I noticed 2 of my plants having this issue. Can someone help identify what it is?
Thanks

 

[One drop]

Looks like some over feeding by the look of some clawing of the leaf tips maybe a history of your grow what you have been using medium, nutes indoors or out . Od

 

[nemgrower202]

Looks like some over feeding by the look of some clawing of the leaf tips maybe a history of your grow what you have been using medium, nutes indoors or out . Od

Ah I've been using bio nova nutrients and I started lowering the amount I give them each week cause I'm close to harvesting.
But since I'm making seeds I have to give them a nitrogen boost for 2 waterings to make the seeds darken. It could be the extra nitrogen.

 

[Moshmen]

I’m with OD looks like to much nitro possibly causing calcium lock out ( brown patches ) pretty dark green- nitro toxicity clawing and burnt tops I can’t see your medium but looks overwatered to ? Just some thoughts