Colombian Tetra

The Colombian Tetra is a large, robust characin native to river systems in northern Colombia, notable for its vivid rose-red body coloration and considerable size compared to many smaller tetra species. The body is deep and laterally compressed, colored in a warm silvery-pink to rose-red hue that intensifies toward the rear half and into the fins. A translucent, elongated caudal fin extends from the body in a deep fork, often carrying a subtle red or pink tint that matches the body's warm coloration. Males typically display more saturated red pigmentation and a slightly more elongated dorsal fin compared to the somewhat paler, deeper-bodied females.

• Deep, laterally compressed body with rose-red to pink coloration
• Coloration intensifying toward the rear body and into the fins
• Deeply forked, translucent caudal fin with reddish tint
• Larger overall size compared to most Hyphessobrycon tetras
• Slightly elongated dorsal fin in mature males
• Silvery sheen along the upper flanks

The Colombian Tetra's notably large adult size compared to related Hyphessobrycon species, combined with its intense overall rose-red body coloration extending well beyond just the fins, distinguishes it from smaller, more selectively colored relatives such as the Flame Tetra.

Colombian Tetras are native to river drainages in northern Colombia, particularly within the Magdalena and Sinu river systems, where they inhabit warm, slow-to-moderately flowing waters. These habitats include vegetated river margins, tributary streams, and backwater areas with soft, slightly acidic to neutral water chemistry typical of tropical lowland Colombia. The species favors open and semi-open water near cover, schooling over sandy or silty substrates within its native river systems. Regional habitat pressures from agricultural development and water use in parts of northern Colombia have affected some river systems within its range, though the species remains relatively common and continues to be a staple of the South American aquarium export trade.

Colombian Tetras are active, robust schooling fish that move confidently through open water, showing more assertive behavior than many smaller, shyer tetra species due to their larger size. They are omnivorous, feeding on small invertebrates, insect larvae, and plant material found throughout their river habitat. Their larger size allows them to compete effectively for food and space within mixed shoals, and males may display mild fin-based posturing during social interactions or courtship. Reproduction follows the typical scatter-spawning characin pattern, with adhesive eggs deposited among vegetation and no parental care provided afterward. Their bold, confident swimming style makes them a conspicuous presence within their native river schooling communities.