Croots Mix/Supersoil Issues

High my Friends
It's my second SuperSoil Aka Croots Mix run and everything went fine till flower day 20+
I attached some pictures how it looked at day 20, that's when they stopped growing and where stunned. It was followed by some yellow leafes at the bottom and now it gets worse from day to day.
I have two big green crack ladies in 40l pots(which look unhappy) and one Gelato in a 20l pot(in the front which is happy)

I am asking myself what's going wrong.
Are my ladies hungry(the super soil sound be quiet strong) or is there an overfertilisation?(burned leaf tips)

At day 15 I topdressed with some animal meal npk 5-5-5.

Temp and Rh are pretty fine and the water I use as well.
I hope some of you could give me some advice

Thank you so much guys!

Check the pics attached


Croots mix
Kelp meal, % cup per cubic foot of soil*
Neem meal, cup per cubic foot of soil
Crab or Crustacean Meal, %2 cup per
cubic foot of soil
Rock Dust, 2 cups per cubic foot of soil
Gypsum, 1 cup per cubic foot of soil
Oyster Shell flour, 1 cup per cubic foot
of soil
A handful of worm castings and a few
compost worms, if possible
Optional: Biochar, 2-4 cups per cubid
foot of soil

Cocktrauma said:

day 20, that's when they stopped growing and where stunned. It was followed by some yellow leafes at the bottom and now it gets worse from day to day.

Click to expand...

Yellow leaves at the bottom reads like N deficiency. I use synthetic chemicals for my nutes and have no experience with coots mix! I wondered about the biochar, I've read it can vary in its pH depending on its production temperature, as production temperature increases, so does pH. If your plants were mine, I'd want to know the pH of the potting mix.

Good luck!

Croots mix?
You mean. Coots mix? Like clackamus coot?
Coots mix cant be recreated to his specs unless you're making your own castings and feeding them neem cake, kelp and the like. You can make a mix LIKE coots mix. But not coots mix...
Plus coots mix is about 1/3 of his worm castings. Not a handful.

Straight from the horse's mouth.

Thanks for your reply so far
I thought it was a coots mix because I used to call it supersoil and someone corrected me in another thread.
Thanks for the video.
So any advice how I should proceed now?

id probably start with a ph pen that can tell you the ph of your medium blue labs makes a decent one can then track the ph of your water, then the ph of the medium (the one with the long probe) a few hours after watering and each day until your next water give you a picture of whats going on with the ph of the medium. there might be enough nutrients already just the ph could be off which would prevent the plants from absorbing the nutrients. basically what im saying is verify the ph is in the right range to absorb nutrients before adding additional nutrients to deal with any perceived deficiencies and go from there.