Building my soil from scratch.
What size of lava rock and pumice grains should I order?
Here is whats available
Pumice grain size 0-4 mm
Pumice grain size 0-8 mm
Pumice grain size 0-10 mm
Lava grain size 1-5mm
Lava 2 - 8mm grain
Lava grain size 2 - 12mm
Lava grain size 8-16mm
Lava grain size 16 - 32mm
What size of lava rock and pumice grains should I order?
Here is whats available
Pumice grain size 0-4 mm
Pumice grain size 0-8 mm
Pumice grain size 0-10 mm
Lava grain size 1-5mm
Lava 2 - 8mm grain
Lava grain size 2 - 12mm
Lava grain size 8-16mm
Lava grain size 16 - 32mm