Microbes are incredibly versatile. If it’s even remotely possible to extract energy or nutrients from something, there’s a species for it. Too much salt for you? No problem for halophiles. Not enough air? No problem for the anaerobes. Too hot or too cold? Thermophiles and psychrophiles can handle it. Not enough nitrogen? Just pull it from the air! Oh, you need carbon too? Who needs glucose, when there’s CO2 in the air. Some even pull their energy from the oxidation reactions of arsene, sulfur or pretty much any element you can find on earth.