Currently as well as I can remember:
8 Black Phantom tetras, 7 Black Neon tetras, 8 Glowlight tetras, 3 Lemon tetras (need some more), 10 Ember tetras, 4 Otos (want some more), Swordtail (will have a trio), 9 Dainty corydoras (C. habrosus), 7 Corydoras pygmaeus and 3 Albino bristle noses.
As you can imagine, they don't need to be hiding to be hidden!