Alright, I'll look into Bolivian rams.
@mitchfish9, from what I've seen, most of these fish will more or less school with eachother. For example, pencilfish of two kinds will form one school, and the same usually goes for similarly-sized cories. I totally agree with you about the larger schools, I'm just trying to balance numbers and variety.
My adventures in keeping Indostomus crocodilus, the crocodile toothpick fish. AKA armored stickleback, paradox fish, and freshwater pipefish. Care is (to the best of my knowledge) exactly the same as Indostomus paradoxus.