If a fish lives 4000 or even 1000-2000 meters underwater, how do aquariums simulate the pressure of that without having the exhibit be actually that deep? Or are the fish able to adapt to the lower pressure environments?
Not for aquarium use but still cool and related to the comments:
[Navy Experimental DivIng Unit (NEDU) Ocean Simulation Facility](https://www.navsea.navy.mil/Home/SUPSALV/NEDU/Facilities/)
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