Alien Containment (Subnautica)

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The Large Aquarium is a large, circular aquarium which can be filled with Fauna caught by the player. It is built using the Habitat Builder inside rooms.

In order to get inside of or put fish into the Large Aquarium, the player must build a Hatch on the side. The player can then enter the Large Aquarium and release caught fish into it. Non-edible fish can be added through the use of their respective eggs. If two or more Multipurpose Rooms are stacked on top of each other, building Large Aquariums inside each Room will cause the Aquariums to merge in one bigger tank. 

If you leave two creatures of the same species inside the Large Aquarium for long enough, they will breed and another fish of the same species will spawn inside. Once the Large Aquarium reaches a population of 10 fish, the reproductive process will stop.

Eggs can be placed inside the Large Aquarium. Eggs will take about 10 in-game days in order to hatch. When hatched, the fauna within the eggs will create smaller versions of said fauna, and will grow inside the aquarium.

Flora can be placed inside the Large Aquarium, via a Planter UI that appears when hovering above the soil. Creepvines will not grow to their full height without stacking aquariums.

Plantable Flora

For a complete list of plantable flora, visit List of Plantable Flora.

Recipe

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Gallery

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  Indoors view

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  View of the residing fish

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  A baby Sand Shark after hatching inside

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  A baby Crab Snake inside

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  A baby Stalker and Shocker playing together

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  Creepvine planted inside the Large Aquarium