Discoloration on leaves, please help! First week of flower

I grow in coco. So I thought in bloom I would cut down on micro and do more grow and bloom. I’ll uptick the cal mag. 1/3/4 is the ratio I’m using for flower with the trio of nutrients. I hope this fixes it.

The the flora trio micro line the ratio of nitrgen and calcium is fairly equal.. You should be adding slighting more micro if you see calcium deficiencies. Not buying a whole other product... Unless you plan on growing in Coco then use Cal-mag.

Yup you got her.. So please listen to me when I say you may not need even need Cal-Mag.. Cal-Mag is a Coco growing thing.. I don't use cal-mag in any of my grows.... Period.. I have it.. But it's collecting dust on the shelf.. Just like yours should.