Always appreciate the help, I have 4 SRS ladies, about 15 days from seed. Ish. Heavy on the feed last week so I noticed and pulled back. Lower leaves on the juice pop are starting to yellow. Others are starting to have deficiencies as far as I can see. I’m @ approx 4ml per g of cal mag (well water @ ~ 80 ppm) and about 4m per gallon of veg organic autoflower specific feed I’ve had great results with a few grows ago. Went from canna back to cronk nutes. In 100% coco, autopots. Haven’t turned them on yet. Hand feed @ 5.7 ish ph. Umol’s @ around 550. 24/0
Vpd steady around .8. (72f/75rh).
I can’t tell if it’s wanting more nutes or it’s a potassium issue. Any input is greatly appreciated. @MidwestGuy @Growdoc @Fritzy @OGIncognito you guys usually have me set! Thanks as always!
Look ok. I would clean up the bottoms. The yellowing is old growth. Your new growth is solid. Pluck the bottom yellow.
Fast veg so will have some faded leaves. Give another week and see if need epsom salt. Can also just do it now. I would. Wont hurt a thing only help. 1-2 tablespoons mixed into topsoil. Water.
To me I’d say they might be telling you they don’t need any more help rn, I’ll be blunt I couldn’t really definitively decide what I believe it is, but if it were my grow I’d pull back on nutes and straight water , on the lighter side for a bit, that’s another possibility, your substrate certainly doesn’t appear over watered though and the leaves are kinda crinkling not dropping, so I’d also probably swing my ph a bit , not crazy just a few points higher, few lower, then back to 5.7 , only bc I find that a reasonable ph drift allows the plant to pick up more and less of certain nutrients which is always a benefit in my opinion, I know it’s basically a long winded idk but it’s the best I got 
How come they look all healthy and then less, is this before and after?
The first thing that pops out a me is it looks like your coco is too dry. How often are you watering/feeding?
Coco is way dry by the looks of it, good eye @AfgVet
Agreed they may be thirsty
I agree with assessment that feeding frequency could probably be increased due to the dry coco. I also feel that leaves touching growing media usually look rough regardless.
These were all taken when I uploaded to ilgm.
As soon as the coco on top dries I’ll water again. I actually never watered the whole pot. So last night I ended up filling a 5 gallon with calmag and medium nutes and doused the whole pot because I wondered if the roots were hitting a dry pocket.
Looking good , just keep doing whatever you did 
Definitely want to keep coco damp. Otherwise looking good.
With the size of your plants, I would be watering daily and soaking them each time. You don’t want coco to dry out at all
Are your Autopots on? If not they should be that will help, I my self do not wait any more as soon as the pots hit the tray they get turned on, not as the instructions say, I figure if the bottom is wet/in feed, roots are heading that way and the coco will stay moist. Just my practise. 