They’re quiet and peaceful. They do this thing now and then where they stand on their back legs and wave their front legs about. Not sure what they’re really doing, but it looks like they’re waving at you. Unfortunately they eat bloodworms (and each other) which come in frozen cube form. When you put it in their tank it gets caught by the filter current and drifts around shedding writhing blood red worms as it goes. Grim.
They’re basically just as serene and low maintenance as fish, but a lot more fun to watch. And I think that if you take them out of the water, they slowly adapt and transform into salamanders.