seedling look sick? HELP!

I have 3 groups group a are 2 weeks group b and c(gold pots) are 1 week old do the seedlings in group a look sick? ik the one finger leaves will fall off is this normal or will this spread up the plant like its deficient? only on 3rd grow and getting paranoid.

You're too organized!

Group A looks has an over watered look, but the soil looks dry. A little detail about the soil, how you're watering, and anything you may be feeding them. Also light and temps they're seeing..

Group A looks bigger/older, I would expect group B to look similar in a few days. Looks like no nutrients/soil PH issue to me.

too organized u think??? my soil is a 6 part soil 2 parts top soil 2 parts pearlite one part verm and 1 part peat the tds ppm of reg water is around 164-175 ph is between 6.2-7.0 water is room temp. fert is 5.1.1. fish emulsion 2tsp per 2 qts water drop of ST quarter tsp of unsulphured molasses phed down to 6.5 and running around 3-65-385 tds ppm after mixed the babys haven't gotten it yet. temps range from 74-84 light are 8 new t8 tubes running 400w at just over 50k lumens watering every 3-5 days or when top inch is bone dry. moving fan for circulation a 160cfm exhaust fan and I .5 volt intake inside a baffle insulative mylar reflective humidity has been low around 30 but just installed a humidifier and now up to 45-55% lights on 24 idk what I'm doing wrong tho only thing I can think is the top soil may contain peat like some do and with adding peat its retaining too mutch center moisture. I need help they are not root bound and roots out bottom holes look real white like they should also group a is 2 weeks old and group b-c are a week today so aprox 10 days apart in age.

Have you used the same soil with success? I'm guessing it's a bad soil or soil PH issue.

Soil PH test:
Pot of soil (with or without a plant, without preferred, use your extra soil if possible)
2 Containers, 2x the volume of the pot

I would use two containers and a pot to run water repeatedly through your soil then take a PH and PPM test of the water. Once the water goes through the pot 4+ times it will give you an accurate PH value for the soil. I'm guessing low PH.

Hey OP darn website was down yesterday, meant to respond. Temps, light and watering seem okay, but yeah if not pH related could they be N hungry?that fish emulsion is 5.1.1 at the strength you've been using? last time fed? how are they looking now?

I did that but with one pot tds came out around 680-682 and ph was 6.4 I'm thinking it has too mutch peat in it bc I noticed once reading the bag of the top I use its comprised of composted peat. plus adding peat means water retention. I'm just going to try and water a lot less. and yeah 69 511 is the strength last time I watered I fed. so I'm thinking its holding water in the soil and causing the plant to lock. its just those bottom leaves its not moving anywhere up the plant or anything.