Leaf care strange spots help

Hey all. Last post was pests I was recommended Jack Bug spray and the little bugs on the soil seems to be gone but now noticed this on the leaves! No bugs on leaves as far as I can tell. Was going to snip the affected leaves but worried. Any suggestions?
Autoflower, indoor grow, coco/superbsoil


Could be a calcium deficiency are you giving it any Cal-Mag?


no I have not, I will pick some up worried of nutrient burn been hesitant

Generally when I see that I begin my calmag and know it’s about time to start feeding