Chinese Hi Fin Banded Shark - 3-5"

Chinese Hi Fin Banded Shark, Myxocyprinus asiaticus, is a large freshwater fish native to the Yangtze River basin of China. Highly valued in large koi ponds, juveniles and subadults are excellent algae and biofilm grazers and adapt well to cooler outdoor pond conditions with strong filtration and good circulation. Their peaceful temperament, unusual appearance, and constant grazing behavior make them a unique and eye-catching companion species for koi and other large cool-water fish.

In nature, Myxocyprinus asiaticus inhabits cool, fast-moving rivers and deeper channels with rocky substrates and strong current. Juveniles are commonly found in shallower flowing water, while adults move into larger river systems with high oxygen levels and seasonal variation in temperature and flow.

Juvenile Chinese Hi Fin Banded Sharks are strikingly patterned, with bold black vertical bands over a pale cream to golden body and an elongated dorsal fin that gives the species its common name. This dramatic banding gradually fades with age as the fish matures, and adults become more uniform gray to reddish-brown with a much heavier, torpedo-shaped body. Adult size is substantial, commonly reaching 24 inches or more in captivity and significantly larger in ideal conditions.

A very large aquarium or outdoor pond is required for long-term care. While juveniles are often sold at only a few inches in length, they grow steadily and require extensive swimming space as adults. A minimum of 180 gallons is appropriate for growing juveniles, but mature fish are best suited to ponds or extremely large aquariums with strong filtration and excellent oxygenation. Smooth rocks, open swimming areas, and moderate to strong current help replicate their natural environment.

Water conditions should reflect cool, oxygen-rich river habitats. Temperatures between 60 and 75 degrees Fahrenheit are ideal, with cooler conditions preferred for long-term health. A pH range of roughly 6.5 to 7.8 and moderate hardness are suitable. Strong circulation and regular maintenance are essential, as this species is sensitive to low oxygen levels and deteriorating water quality.

Feeding Chinese Hi Fin Banded Sharks is straightforward. Juveniles are omnivorous grazers that consume algae, biofilm, insect larvae, crustaceans, and plant material. In the aquarium or pond they readily accept algae wafers, sinking pellets, vegetables, and frozen foods. As they mature, they continue to feed heavily along surfaces and the bottom.

Temperament is peaceful despite the common name. Myxocyprinus asiaticus is not a true shark and is generally calm and non-aggressive toward tankmates. It can be housed with other cool-water species large enough to tolerate its size and activity level.

Breeding in home aquariums and ponds is essentially unknown due to the species’ size and migratory spawning behavior. In nature, reproduction is linked to seasonal river conditions and long-distance movement.

Myxocyprinus asiaticus is an impressive and unusual river fish best suited for experienced aquarists or pond keepers prepared for its eventual size and cool-water requirements. Its dramatic juvenile patterning, peaceful temperament, and usefulness as a grazing species make it a standout addition to very large freshwater systems.