Hemiodontichthys acipenserinus
At the last CSG convention in early 2022, I was able to purchase some Hemiodontichthys acipenserinus from Aqualife, Wigan, UK, a species that is distributed across large parts of South America (from Guyana to Brazil to Bolivia and Peru) and has been found in clear water, black water and white water rivers. This small species has the German name Nasenharnischwels, but I find the English name Pinocchio Catfish even more appropriate.
In addition to the wonderful Pinocchio nose, the blue iridescent rim around the eye is also striking.