||Pricklefish may LOOK frightful, but they are actually very friendly critters. That kount krab on the other hand...
The Deep Sea Aquarium is a Cool Sanctuary Item within Feral. It was released April 21st, 2021, and can be crafted in Twigla's Workshop after unraveling the Hadopelagic Enigma.
Deep Sea Aquarium as it appears in-game.