Well these would be great at getting rid of any unwanted fish! lolGlad they're eating for you. Funny that I found this thread because I was thinking about getting a couple for my home aquarium and I also plan to buy them from Wetspot. I've been trying to get rid of my wife's 3 goldfish for over a year and this would be fun to have. I plan to order them from Wetspot as well. They have 5"ers right now so I'll get those and a couple more polys for my office aquarium.
I would highly recommend these guys, they're very cool fish and each has a very distinct personality. Though if you're the kind of fishkeeper that wants their fish active all the time, then these aren't for you. Once they settled into the tank, they picked out a piece of driftwood and spend most of the day hiding underneath it. But I still get to see them a lot when I turn on the night light in the tank, one of those dim blue led's. I get a few good hours of viewing every night, where they just wiggle against the powerhead. So if you end up getting them I'd recommend setting up a hiding spot that you can see into and using a blue night light.