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 Safe Shallows 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, after disinfected water.

Its speed is rather low and its attitude is passive, making it easy to catch. It is especially easy to catch during nighttime, when they are next to immobile due to their diurnal (dayactive) properties.

When killed, it drops nothing.