They collect CO2 and water from air. The water is split via electrolysis to get hydrogen for the knallgas bacteria to feed on along with the CO2, minerals and a

They collect CO2 and water from air. The water is split via electrolysis to get hydrogen for the knallgas bacteria to feed on along with the CO2, minerals and ammonia. [1] There is a path for the ammonia to be directly source from the air as well via plasma nitrogen fixation. [2] [1] https://youtu.be/z8zuqR95fqA https://youtu.be/z8zuqR95fqA [2] https://www.mdpi.com/2073-4344/10/2/152/htm https://www.mdpi.com/2073-4344/10/2/152/htm