Question: Charcoal in potting mix for neps

[sooxiwei]

Originally Posted by alpiner

All,
Thx for your responses.
From what I gathered, I'm planning to put ~2-3cm of crushed charcoal as bottom layer for airiness, mixture of perlite+sm in btw, and top 2-3cm pure sm. Maybe btw charcoal and perlite/sm, I'll add transition layer of charcoal/perlite/sm. Do you see any problem with this setup? If it's working, I'll adjust layer thickness for diff nep type, e.g. if swamp neps then thicker perlite+sm layer, HL then thicker charcoal layer.

I've tried this sort of potting layer, just that I replaced charcoal with Styrofoam pieces, so far, they grow quite slowly as compared to common mix