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This article is about Aquarium in Below Zero. Click here for information on this subject in Subnautica.
This article is about the Aquarium. You may be looking for the Alien Containment.

The Aquarium is an Appliance that can be built inside of a Seabase module using a Habitat Builder.

It can hold up to eight slots of the small Life Forms which are categorized as Food, Sea Monkey Baby, or Penglings. They can be added by clicking on the aquarium to bring up its Inventory menu, and placing the fauna.

As opposed to the Alien Containment, fauna will not breed in the Aquarium.


The blueprint for this item is unlocked by scanning the Aquarium in Emmanuel's Office, Outpost Zero, or Phi Robotics Center. It is crafted with the Habitat Builder.

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Databank Entry


The aquarium is designed to hold and sustain up to eight small aquatic organisms, and fits inside a regular multipurpose habitat room.

Aquatic creatures make up 70% of all known species, making the aquarium a commonly deployed tool in many exploratory operations. It is just as often used to house livestock for later consumption as it is to hold specimens for xeno research. An automated environment regulation system means there's no need to feed or care for your subjects.

NB Due to its size the regular aquarium is not rated for breeding applications, and creatures are highly unlikely to mate. Construct a full size alien containment unit for this purpose.

Source: Unlock the Aquarium