Venenivibrio stagnispumantis strain CP.B2 is the first microorganisms isolated from the terrestrial hot spring Champagne Pool (75 °C, pH 5.5) in Waiotapu, New Zealand.

Venenivibrio stagnispumantis gains metabolic energy using the "Knallgas" reaction H2 + ½ O2 → H2O.

[2] Venenivibrio stagnispumantis displays tolerance to relatively high concentrations of arsenic and antimony compounds.

[2] The pH of the medium is adjusted to 5.5, distributed into culture vessels and autoclaved under CO2.

After the inoculation the initial gas phase is replaced with H2 / CO2 / O2 (79% / 15% / 6%) and pressurized to 170 kPa.