I have experience with it in a somewhat inert substrate. It grew well for a few months in sand, 30gl, 3wpg PC, 2x DYI co2, dry fert dosing similar to EI, and jungle root tabs. I eventually killed it during a period is collectoritus and stumbling upon the secret for growing stems, everything including belem shot into overdrive and I failed to compensate with extra dosing, nitrate dropped to zero and the belem went downhill.