Bladderfish (Subnautica)

The Airsack (in early builds called Bladderfish) is a life form belonging to the fauna category.

It is both catchable and harvestable. They are most found in the Grassy Plateaus biome. They stand out in comparison to other small fish, as they can be used to craft filtered water, which fills up 15 H2O. As a result, Airsacks are the second best source of H2O, with disinfected water, which is gained from bleach, ranking first.

Its speed is rather low and its attitude is passive, making it easy prey. Especially during nighttime, Airsacks are next to immobile due to their diurnal (dayactive) properties.

When killed, it drops nothing.