Super-hot geothermal temps? Check. Tons of sodium borate? Check. High levels of lead and arsenic? Heck yeah! This is my habitat.
...I wonder why I'm the only one here?
Borax Lake Chub (Siphateles boraxobius)
Borax Lake, Oregon
Status: Recovered and delisted
Chubbie is the only fish that lives in this... unique, and small, lake. It was threatened by geothermal energy development, but the Nature Conservancy bought its lake and it was eventually delisted from the Endangered Species Act in 2020.
Ooh, delisted. Nice to see a good news one!