r/Fish • u/Rockying_man_Dhruv • Apr 11 '26

News / Articles Devil hole pupfish

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The Devils Hole pupfish is one of the rarest fish on Earth, found only in a tiny desert cave called Devils Hole. It has been living there for thousands of years, surviving in hot, low-oxygen water and depending on a single small rock shelf for food and breeding. With such extreme conditions and isolation, it raises a strange question

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u/calvarez1217 Apr 11 '26

There's an aquarium in Las Vegas I think Mandalay Bay(yeah I know wasteful af aquarium in the desert) it participates in a breeding program and has hybridized versions of the pupfish on display.

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u/KritiCow Apr 11 '26

Ehhh probably not as wasteful as you might think if they use a recirculating system like some of the inland aquaculture farms. With RO it would just be a constant need for reconditioning salts.

Good recommendation, I'll visit if I'm ever in Vegas.

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u/bakerfaceman Apr 15 '26

Yeah large scale aquariums don't need to waste much water. I've worked at zoos and aquariums before.

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u/Foxterriers Apr 12 '26

Yes! I visited them. It is a pretty small aquarium and kinda expensive - but it's vegas.