Unusual aquatic pets?
While I'm not getting one anytime soon, I was wondering what kinds of unusual aquatic pets are out there that can be kept alone in a tank <55g. Reason being, I like the concept of having an aquatic "pet", not just countless fish, if that makes sense. To name a few examples, axolotl, ropefish, bichirs, even oscars? (these don't all fit the <55 gallon category obviously).
I'd love to find out more about these "smaller" aquarium monsters...strange fish work as well! Reading up and learning about these different types of creatures is just really interesting to me. Also, I realize this might not fit in the fish category, I just didn't know where else to put this.