Known as Pica Culas (ass biters) in Costa Rica, The Mayan Tetra, Hyphessobrycon compressus has a voracious appetite! They belong to the large freshwater family, Characidae which includes the notorious Red Bellied Piranha of the Amazon Basin. While kayaking underground in the heart of the Belizean rainforest, we provided a meal for the Pica Culas!