Can't diagnose what the prob is

I can't tell if it's a N prob or calcium or nute bu rn this is my 2nd grow still learning how to diagnose probs

looks like slight burn to me. the tips are the first sign
some helpful info
Nutes? quantities and schedule?
soil?
have you checked ph?
do you moniter tds when you feed Nutes?
Its natural to see some yellowing during end of flower however that look more along slight Nute burn to me. I would start a good flush right away check all your numbers and make a gameplan from there.
dont stress to much they still are going to be great, props on secound grow looks overall very nice! keep up the good work. One thing i just noticed is your pot seems a bit small for that size ladies. what size is she in now?

Yea it's a critical jack auto strain it wasn't suppose to get that bug I had to force it to flower it was stuck in veg stage and I couldn't transfer it u know would have put it back veg and considering it's a auto there suppose to not have a good recovery time I haven't checked any lvl I need to go ahead and buy a tester ...but this is only a 2nd grow so still working things out and getting items

davick said:

Yea it's a critical jack auto strain it wasn't suppose to get that bug I had to force it to flower it was stuck in veg stage and I couldn't transfer it u know would have put it back veg and considering it's a auto there suppose to not have a good recovery time I haven't checked any lvl I need to go ahead and buy a tester ...but this is only a 2nd grow so still working things out and getting items

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yulp for sure, I wold go ahead and flush then go back to 1/4 stength nutes. and youll be fine!

Water flush or something like sledgehammer or a long thst line

I use sledgehammer occasionally. It does the job.

Heat issue? some leaves look like they were to close to a light source