I think that they eat just like any bacteria, but they eat on the phile that they get their name from.
It can be either. An extremophile is an organism that is able to grow, and thrive, in extreme environments.
Anchea
they survive in extreme conditions
An extremophile is an organism that thrives in an environment generally not condusive to mammalian life. A desert is not conducive to mammalian life, due to the hot days and cold night. A camel is an extremophile
extremophile archibacteria
a psychrophile is a extremophile that can survive at temps of about 20 to -10 degrees C
they adapt so that the dont die
Probably a plethora of minerals, as well as some extremophile bacteria that can survive in the sub-zero temperatures.
Halophile
Extremophile, (extrem(e) + phile) = extreme + living or liking. So extremophiles live in conditions well away from the norm. They are more specifically halophiles.There are algae that live inside rocks in the Antarctic! And more commonly, there are the cyanobacteria, a.k.a. blue-green algae that live in boiling springs. Hope that helps.
Boiling water in Yellowstone Park geysers, 3 miles down in solid rock - all called extremophile microbes.
Haloquadra walsbyi is a halophile which is an example of an extremophile. Halophiles are organisms that thrive in environments with high concentrates of salt eg, the Dead Sea.