What about the whole plant? I assume you are in flower now. Some amount of discoloration seems to be the norm for flowering.
The more experienced growers on here would probably tell you to check your pH. I am towards the end of my first dwc grow and i have let the pH swing out of bounds a few times. i am pretty sure that is the reason for the appearance of calcium def in mine.
here is a link to the infirmary form.
https://www.autoflower.org/threads/...ill-out-first-with-the-data-that-matta.45991/
copy and paste into a new thread in the infirmary and fill out all the info and you can get some expert help. i would take a picture of the whole plant though. make sure you turn your grow lights off for the picture.
