Help Please :(

This is my first grow, i mean to transplant them outside once it's warm enough, the lows still hovering around 0°C here. I work in a small greenhouse, and i'm worried I might have tracked back trips? Or it might be a burn on 2, and a deficiency on one (two are in miracle grow-- sucks I know, but the choice really is that limited here, and one is in pro mix).
Just really hoping someone would be able to help

It looks too wet and repot.

it's not looking too bad except over watering. let the soil dry out between watering. over watering is the most common cause of plant death. GL

flush with water and 2table spoons of an organic soap, 16 oz. of water, do this 3 times a day for 2days, then add 3table spoons of mag sulfate to that mix for two days, this will open up all caps,and allow the to increase the monosacc. up take,then 86 the miracle grow, if you have a scope with a camera port prep a soil slide and shoot it to my email [email protected], and will be happy to walk you through build a high bact. nute,that is site specific

Do as Coho suggested, and add more perlite to your mix, water only when cups are light.
Do you have drainage holes?

@Coho I'm going to repot them now, and @ Baka they do have drainage. Two of the plants seem stable, the third not so much. This is two leaves I had to remove from my blue medi kush plant, they almost seem like something is eating them?

View attachment 2635155View attachment 2635156
Here is the blue medi kush again, the root system looks great, and it's repotted (the others as well) in pro mix with some extra perlite. I have 17 different types of advanced nutrients that should be here within the next few days, (i'll add the list below).. I was thinking maybe the revive would really help it?
I have some DNF bloom and grow, as well as some general organics lying around, would any of that help the plant?
I know it's a bit of an overkill on the advanced nutrients, but i'm going to do 60 plants outside as well..

BIG BUD 8 FL OZ BOTTLE
BUD CANDY 8 FL OZ BOTTLE
OVERDRIVE 8 FL OZ BOTTLE
KUSHIE KUSH 8 FL OZ BOTTLE
SENSI GROW A & B 16 FL OZ TOTAL
SENSI BLOOM A & B 16 FL OZ TOTAL
BUD IGNITOR 6 FL OZ BOTTLE
2x BUD FACTOR X 6 FL OZ BOTTLE
ANCIENT EARTH 6 FL OZ BOTTLE
SENSIZYM 8 FL OZ BOTTLE
RHINO SKIN LIQUID 6 FL OZ BOTTLE
FINAL PHASE 16 FL OZ BOTTLE
TARANTULA LIQUID 4 FL OZ BOTTLE
PIRANHA LIQUID 4 FL OZ BOTTLE
ADVANCED NUTRIENTS SENSI CAL MG MIX CALMG MIX GROW & BLOOM 12 FL OZ TOTAL
ADVANCED NUTRIENTS HAMMERHEAD PK 4/10 8 FL OZ
ADVANCED NUTRIENTS REVIVE CROP PROTECTION 6 FL OZ