Black Arowana (Osteoglossum Ferreirai) Sizes:9 - 11 inches (shredded fins or damaged body) This a scaleless fish with

This a scaleless fish with a cartilage skeleton

but only in optimal conditions

in which gulped air can be stored to oxygenate the blood that runs through this organ

Batrachoididae

The caudal fin is truncated with a broad dark brown cross band while adipose fin is well developed

Black Arowana (Osteoglossum Ferreirai) Sizes:9 - 11 inches (shredded fins or damaged body) This a scaleless fish withBlack Arowana (Osteoglossum ferreirai) The Black Arowana is one of the most unique and elegant arowana species available, prized for its dramatic transformation from a jet black juvenile into a sleek, metallic adult. Native to the Rio Negro and surrounding Amazonian blackwater systems, this species is known for its elongated body, smooth swimming motion, and surface hunting behavior. Compared to other arowanas, the Black Arowana offers a more refined