Always a good oddball. Aqua imports has some for sale now too.I just thought of another potential candidate. Have you ever heard of the Dusky narrow hatchetfish? It's the largest hatchet fish which grows to 6 inches although it doesn't have the normal hatchetfish shape. It's more like if a hatchetfish got stretched out. Here's a link to seriously fish about it.
https://www.seriouslyfish.com/species/triportheus-angulatus/