Description
Common Name: Borneo Red Cheek Sultan Fish
Scientific Name: Leptobarbus melanopterus
The Borneo Red Cheek Sultan Fish is a wild-caught cyprinid from Borneo that is rarely seen in the hobby. It is a sleek, torpedo-shaped cyprinid with a silvery body, and its trade name refers to its red cheek. It is a fast, active swimmer that shows best in a group. It is an unusual and interesting fish that is highly prized by aquarists who enjoy Asian species.
Habitat and Distribution:
Leptobarbus melanopterus is native to the Kapuas basin of Borneo (Indonesia), where it lives in rivers and streams. The Kapuas is the longest river in Indonesia, and many of its tributaries are soft, slightly acidic forest streams.
Size and Lifespan:
Adults reach about 10-12 inches (25-30 cm). Lifespan in captivity is not well documented for this species, but with good care it can be expected to live for many years.
Diet and Behavior:
It is omnivorous. In the aquarium, offer pellets, vegetables and frozen foods. It is a peaceful, active schooling fish that can be skittish when kept alone. Feed a varied diet and remove uneaten food promptly to protect water quality.
Breeding and Reproduction:
It is not bred in home aquariums; fish in the trade are wild-caught. Little is documented about its breeding habits in the wild.
Aquarium Care and Tank Requirements:
A tank of at least 180 gallons (6 feet or longer) is recommended. Provide open swimming space, strong filtration and a secure lid, as it jumps when startled. The water temperature should be kept between 72-82°F (22-28°C), with a pH of 6.0-7.5 and soft to moderately hard water. Regular partial water changes are essential to maintain water quality, and new arrivals should be acclimated slowly.
Ideal Tank Mates:
Good tank mates include other peaceful, active fish of similar size, such as large barbs, rainbowfish, loaches and plecos. As with any aquarium, introduce new fish carefully and watch for signs of stress or aggression.
Difficulty Level:
Intermediate. It is hardy, but grows large and needs a long tank. It is well suited to aquarists with some experience who can maintain stable water conditions.
Water Parameters:
- Temperature: 72-82°F (22-28°C)
- pH: 6.0-7.5
- General Hardness (GH): 3-12 dGH
- Carbonate Hardness (KH): 2-8 dKH
- Ammonia: 0 ppm
- Nitrite: 0 ppm
- Nitrate: <20 ppm (regular water changes required)
Additional Information:
- Keep it in a group in a long tank with open swimming space.
- It jumps when startled, so a secure lid is essential.
- It is an active swimmer that appreciates good water movement.
The Borneo Red Cheek Sultan Fish is an uncommon, active schooling fish for large aquariums. With the right setup and care, it will be a rewarding addition for many years.



















