HELP! Yellow leaves w brown spots. Calcium deficiency? Super soil question

[Sadpygmy]

About 4-5 weeks till harvest. Living soil in 2x4 tent. 4 strains in 5 gal bags. The Bruce Banner’s older leaves look like this, near the top. They are 17 inches from the lights which are as high as possible. I’m really trying to stay true to organic growing. Would a tea or amendment with living soil bring the nutes up? Getting close to the finish line, don’t want to lose these.
Clockwise L-R = Gorilla Zkittlez, Bubblegum, Amnesia Haze, Bruce Banner

 

[crucialbunny]

Looks fine. Yellowing leaves in a budding plant are perfectly normal as it drains nutrients from sun leaves. I like to give my soil a little bolster around this time of tea made from banana, worm castings, and molasses. Your plants look to be really happy and healthy. If the yellowing leaves bother you, just remove them. Good work.

 

[Sadpygmy]

Thanks, I was concerned because it was just the one plant. I’ll make up some tea to give them a boost

 

[AGH]

Yup, just enjoy the fall colors!