lol, this is funny cause I still am in the same boat, just different fish. I dropped 32 balloon lamp eyes in my tank and thought I got shorted fish lol. I still am debating whether or not to get more and/or some rummynose. Going to have to wait and see what 9 grown roselines make the tank look like. I would pick the main fish you want to school and add to them until you "feel" like it is big enough.
~30 Rummy-nose Tetras, ~30 Balloon Lamp-eye Tetras, 2 Bristlenose Plecos, 4 German Blue Rams, 1 Rainbow Shark ~15 Amano Shrimp, 8 Roseline Sharks, 3 Clown Loaches, 2 SAEs