Base soil mix:

1:1:1: CSPM (Canadian Sphagnum Peat Moss) : Pumice/Lava rock : Compost - Malibus B/U is an excellent choice if it is available in your area.

Amended per cuF with:

1/2 - 1 cup Neem or Karanja

1/2 - 1 cup Kelp

1/2 - 1 cup Crab/Crustacean meal

1 cup MBP (Malted Barley Powder)

1/2 cup Gypsum (nice sulphur source)

4-6 cups Basalt

6-8 cups Biochar

*Small handful of worms per container*

Watering routine

Day 1 Plain water

Day 2 No watering

Day 3 MBP top-dress watered in with Aloe/Fulvic/Silica (agsil or your silica source of choice)

Day 4 No watering

Day 5 Plain water

Day 6 Neem/Kelp tea

Day 7 No watering

Day 8 Plain water

Day 9 No watering

Day 10 Coconut Water

Day 11 No watering

REPEAT - Beginning to end, no changes needed for various stages of growth, simple enough right?

I substitute some things but this is a good basic starting idea. Obviously where you are located determines which kind of inputs you should be using