hey there Outlaw, it's not calmag deificiency, it's N toxicity, you have too much N and NPK , just ease off something like 0.5 ml / gal , should be okay. You can tell from the too green, shiny aspect on the leafs and burnt tips. The yellow mark i think could be a bite mark, probably some fly hatched, had a bite and flew away. Hope this helps ! 🚀