Gouramis, or gouramies are a group of freshwater anabantiform fish that comprise the family Osphronemidae. As labyrinth fishes, gouramis have a lung-like labyrinth organ that allows them to gulp air and use atmospheric oxygen.

Parosphromenus is a genus of small labyrinth fishes highly specialized peat swamp inhabitants native to southeast Asia.

Symphysodon colloquially known as discus or discus fish is a genus of cichlids originate in the mixed tropical waters of the Brazilian Amazon River of South America.

Pterophyllum scalare, most commonly referred to as angelfish or freshwater angelfish, is the most common species of angelfish frequently found in the aquarium trade.

Butterflyfish is one of the most recognizable reef fish in the ocean, a group of more than 110 species part of the family Chaetodontidae.

Corydoras are quite placid and well suited to tropical freshwater community aquariums, as they get along well with most other species and are not aggressive.