Leaves

Hi mate, this looks like the beginning of a lockout. Usually CalMag deficiency shows up first with a lock out. I left mine too late and now I'm trying to recover as accidentally made my soil too acidic for a few weeks. Started small then has slowly got worse. But she is now on the mend now that I know what i did. Do a slurry test of your soil. put some clean water in a jug, check the ph, add some soil and stir. Check the ph again and see how much it dropped. My water was 8.8 and it dropped to 6.4. Too much of a drop for me so my soil is acidic. If it only drops by 0.5 I wouldn't worry so much but take extra care of what you out in. If it is a little more, try watering with a higher PH no more than PH 8. Vice versa but PH 5. Using agricultural gypsum will lower your soil ph and dolomite lime will raise it. Both have calcium and lime has a higher magnesium content. I hope this helps, good luck and happy growing