Viewing post #3089167 by Ylis

I got as far as mixing a batch of somewhere between 30 and 40 litres. It's something!
There's probably a better method for breaking up the charcoal than just banging the bag with a hammer. I broke them up a bit more by hand to match the approximate size of the coco husk pieces. And I lost count a few times, so the measures are not exact. But this is roughly the mix:

5 parts rice hulls
5 parts P-jord planting soil
5 parts coco husk
2 parts perlite
5 parts pumice
2 parts coarse sand
2 parts charcoal





The rice hulls make the mix feel really airy.