What is wrong?

Hey guys, over the last few days I’ve noticed this on a few of my plants, they are only 3 and half weeks from sprouting (growing FEM train wreck) been going light on nutrients and light watering.. like half a liter each.. did The first big feeding on Sunday of half a gallon each.. I wasn’t measuring ph in the begining, sundays feeding was a little low at 5.9ph because I added a ratio of lemon juice to bring it down from 7.4, my temps have been good, have a fresh air intake/exhaust with a booster, a circulation fan.... not sure what the deal is with this, best I can come to is nitrogen but the leaves aren’t yellowing.. help! Haha

I’m using advanced nutrients

What medium you using?

lime73 said:

What medium you using?

Click to expand...

that first pic full view is a mix of some old fox farm ocean forest and coco with perlite added, the rest are just coco and perlite, the mix seems to be the most vigor and only one not showing these signs