The moment I figure out how to mod in a containment unit for fish, I’m going to go on an expedition into the sewers and grab some seweranha, and use the debug to place a 2 wide deep water moat around my base (justified since we can’t actually dig and fill a moat yet) to put them in. I’ll replace them with acid if we ever get actual moats.
Also planning to build a Dr. Evil style pool in my lair, also filled with seweranha. If the devs ever implement the ability to take prisoners, I’ll feed them to my fish.