When running BuildASoil living soil in an Earth Box, the reservoir must be allowed to go completely dry between waterings instead of kept full (as the Earth Box manufacturer recommends) — this keeps oxygen in the root zone.
This is BuildASoil's direct override of Earth Box's own use instructions. The BuildASoil mix is heavier and more natural than potting mix, so letting the reservoir dry prevents anaerobic conditions.
Discussed in: Ep 011