HELP! Seedling leaf discoloration

[hukaraptor]

I have this little OG Godfather seedling and yesterday I started the mainlining protocol by topping at the third node. It is only 3 weeks old and was growing well (first few pictures). 24 hours after the trim I’m noticing discoloration of the fan leaves. Could this be due to their direct exposure to the lights? Or something worse?


mahalo

 

[Gingerbeard]

It could be something worse, but it probably isn't.
Tell us about your nutes and medium and environs and such.

 

[Bluey]

I am certain it is not too much light.

I think it is the beginning of a deficiency, probably caused by incorrect pH and/or your watering practices and would be looking closely at those 2 things 1st.

 

[hukaraptor]

Hi y'all,

Long time, no updates. I'm happy to report that I stayed patient. I let the little gal do her thing. After a short period of time, she sprang back to life! I topped first at day 20 (my initial post) from germination. By day 30, she was ready to top again. My base is pretty well filled out here at day 44. I'm getting ready to flip, as this strain (OG Godfather, ILGM) can stretch a bit high, based on my last grow.

Just to fill in details, based on some questions posted here:
5 gal fabric pot
Soil: Coco Loco
Nutes: Dyna Grow/Bloom (1/2 tsp / 1/2 gallon ~2x per week, one watering per week with nothing)
Fox Farms: cal/mag 1/4 tsp added to one of the waterings per week
Humidity is roughly ~65%
Temp is roughly 70F

mahalo