Rainforest fish

Tropical rainforest waters -- including rivers, creeks, lakes, and swamps -- are home to the majority of freshwater fish species. The Amazon Basin alone has over 3,000 known species and possibly as many unidentified species.

Many of the tropical fish kept in freshwater aquariums are originally from the rainforest. Fish like angelfish, neon tetras, discus, and common algae-eating catfish come from the tropical forests of South America, while danios, gouramis, Siamese fighting fish (or Betta), and the clown loach are from Asia.

PHOTOS OF RAINFOREST FISH

Discus fish

Boeseman's rainbowfish (Melanotaenia boesemani)

Altum Angel (Pterophyllum altum)

Cloud of cardinal tetras

Red Rainbowfish (Glossolepis incisus)

Sailfin spotted pleco

Altum angels in an Amazon biotope aquarium

Congo tetra

South American Leaf Fish (Monocirrhus polyacanthus)

Discus, a popular aquarium fish