How about some cardinal tetras? The blue would look stunning in that tank.
I think you are spot on, how big of a school would look good?
Females also have the purple spot on their belly and aren't as long as the males. Nice apisto.
Thanks, they are tank bred Apistogrma Pandouros. We had bought the 2 pair last winter when they were tiny little guys, they have filled out nicely.