Hi Cat,
if we're talking Leopard fish, the cold water livebearer then it's name is Phalloceros caudimaculatus.
For the Angelicus cat - if we're talking black with white spots, shaped like a feather-fin syno then it's Synodontis angelicus.
For the Snowball I assume it's some type of pleco, the one most commonly called this name is Hypancistrus sp. L102 (have a look here)