Nice. Also nice to see them with angelfish, which is how I used to keep them, with angels, discus, laetacara, etc. (Other than water quality, I didn't baby discus when I kept them the way a lot of people think you have to, and I always did well with them.) Been years since I've had Mesonauta, though. Basically all were called festivum back then, so no idea what species I actually had. (yeah, I know technically "festivus" is correct, but back then everyone called them festivum)
Anyway, I liked them when I had them. How many in the group?