The Albino Tiger Oscar (Astronotus ocellatus), also known as the Marble Cichlid or Velvet Cichlid, is a large South American cichlid species that needs little to no introduction. It is one of the most popular and beloved fish in the entire aquarium hobby, and with good reason. It has beautiful markings, is extremely hardy and unfussy in every way, and is easily a centerpiece fish in any large aquarium. It grows to a substantial, but manageable size and is one of the most interactive fish when it comes to paying attention to its keeper.