European Eel
Now, this one here is actually considered critically endangered because of overfishing and habitat destruction. Again, a freshwater eel species, same genus as the American Eel actually, Anguilla. Technically, Anguilla really contains the majority of freshwater eels, and all the catadromous eels. (Catadromous means they live in freshwater but migrate to salt to spawn and die; if you're a bit lost, dw, I'm awful at explaining!) They don't really live too long in the wild, like 20 years max, but in captivity, these fellers are beasts. The Brantevik Eel act lived from 1859 to 2014 in a random well in Sweden granted I wouldn't recommend trying to get an eel to live 150 years in your personal well.
Once again, they are eels, known for that silly, little slither-ous shape. I realized, little versed as I am in fish, you fellers are probably less versed, so I'll share some basic eel knowledge. All eels are carnivores, some even being cannibalistic. Eels require a ton of water to keep, mostly because they thrive in shallow, wide waters, some species even thriving in just mud fields. As you should know, electric eels are knifefish, not eels though the vast majority of eels are more than a little electrosensitive.













