How to Put Fish in Aquarium in Subnautica PS4
Super easy! Just catch the fish with your knife, then go to your aquarium and press X to put them in!
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Use your PDA, not the knife, to catch the fish. Then, just interact with the aquarium and deposit them.
TBH, it's all about catching fish with the grav trap, then just transfer them manually to the aquarium. Done and done.
Just swim up to any fish, grab it with your hand, and then go to the aquarium to drop it in. Simple as that!
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