Red Flagtail

A large, striking prochilodontid fish sold as Red Flagtail, with contrasting fin markings and an active grazing habit. Trade listings may cover more than one Semaprochilodus species.

Aquarium and care

Plan for a fish that can exceed 25–30 cm. Provide a very large mature aquarium with extensive swimming room, strong filtration, and oxygenated tropical freshwater. Arrange smooth grazing surfaces and secure decor.

Feeding

Supply a substantial vegetable-based diet, suitable sinking foods, and natural biofilm. It should not be expected to live on incidental algae alone, and live plants may be grazed.

Temperament and tank mates

Choose robust compatible fish of appropriate size. Conspecific territorial behavior can be significant, so grouping requires substantial room and a carefully planned setup.

Buying information

Choose from the current size and purchase options shown on this page. Listed sale sizes describe the fish or livestock supplied, not its adult size. Photographs show representative appearance; individual color, markings, and development can vary.