@pappybear here u go

[tropicalcannabispatient]

25% EWC/compost
25% pumice/rice hulls
50% sphagnum (make sure to hydrate first!!!)

per cuft of base mix:

5 cups rock dust mix (4x glacial, 1x basalt, 1x bentonite, 1x oyster shell)
1/2 cup gypsum
1/2 cup neem/karanja meal
1/2 cup crab shell meal
1/2 cup kelp meal
1 cup biochar

 

[tropicalcannabispatient]

@pappybear

 

[Kind Sir]

Off the top of my head that mix seems similR to Buildasoil living soil. I literally just transplanted into some of it.

 

[pappybear]

I have been looking at biochar. Good for potassium right?

 

[Wetdog]

I have been looking at biochar. Good for potassium right?

Uh, no. Biochar is good for aeration and a home for microbes. Pretty much zero NPK value, being pure carbon (basically charcoal).

Wet

 

[Grandpa GreenJeans]

Off the top of my head that mix seems similR to Buildasoil living soil. I literally just transplanted into some of it.

I was on their site the other day. They're newest basalt looks good. I must try it!

 

[Grandpa GreenJeans]

25% EWC/compost
25% pumice/rice hulls
50% sphagnum (make sure to hydrate first!!!)

per cuft of base mix:

5 cups rock dust mix (4x glacial, 1x basalt, 1x bentonite, 1x oyster shell)
1/2 cup gypsum
1/2 cup neem/karanja meal
1/2 cup crab shell meal
1/2 cup kelp meal
1 cup biochar

Take away 1/2 of the peat and add leaf mold. High CEC and the microbes mainly hang out in it from its high Carbon value. Organic acids are present too but leaf mold Is a reliable renewable resource. Much better for the enviroment-
Other than that, the mix sounds good!
See, isn't playing in the dirt fun!!!!

Caution on the gypsum. Not that you have to much, I've used it before in the past and I was unhappy with it. It fucked with my calcium availability. I refuse to add it anymore. There's other products out there that can give the same result.