How to Use Alien Containment in Subnautica
First, build an Alien Containment unit in your base using a Habitat Builder. Then, hatch creature eggs by placing them inside and enjoy your own underwater petting zoo!
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Use the Habitat Builder to construct an Alien Containment unit inside a multipurpose room. After it's built, click on the hatch to access it and deposit creature eggs. Boom - instant aquarium!
I've used it for breeding fish to have a constant food supply. Just drop the eggs in, wait for them to hatch, and enjoy endless sushi!
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