Looking for a certain pet? Wanting to get rid of that nasty 'lil Magma Creeper your mother gave you? Then post an advertisement here for all the pets you'd like to trade and even the ones you're looking for!
The Hinder, Malphas, Leawolf and Wooly Torken would be the easiest to trade - would any combination of those be a good exchange for the Betta? That one's my primary focus.