Axum Bacterial Culture is a rare material in Subnautica 2, as it's only found in specific spots.

A bacterium that can not only withstand but thrive on arsenic has been discovered by NASA scientists at the bottom of a Californian volcanic lake. That the bacteria can live on such a toxic substance ...

Axum Bacterial Culture is a rare late-game biological resource in Subnautica 2 used primarily for building Metal Farms. Players can find it inside sludge-filled ooze lakes northeast of the Angel Comb ...