Cal deficiency? (Pics)

I’ve noticed a few leaves getting brown places on them but not exactly sure if it’s calcium deficiency or not. Plant is a sour diesel in happy frog ph water to 6.5-6.6 and 2tsp of calmag every watering. Thanks for the help!

Plants can suffer from an array of things if air flow is stifled. Id start by doing a light defolation for better air flow. Check ur ph in the soil go from there. Good luck

When I grew in foxfarm ocean forest, I never added calmag & my leaves never looked wonky like this. When my leaves have looked wonky like this, was when I was providing too much calmag in coco. For what it’s worth. I’m not great @ diagnosing leaves. But that looks like either mag or potassium def, which can occur w/ excess calcium if I’m not mistaken.

After more I’ve searched, I also believe it could be phosphorus deficiency. Maybe someone will know for certain.