Borneo Red Fin Silver Shark Care Guide
Cyclocheilichthys janthochir · Freshwater Fish
What Borneo Red Fin Silver Shark look like
Cyclocheilichthys janthochir, commonly known as the Borneo Red Fin Silver Shark, exhibits a streamlined, fusiform body that can reach a maximum adult size of approximately 6 to 10 inches (15 to 25 cm). The species is characterized by its lustrous silver body, which serves as a form of camouflage against predators, and its strikingly vivid red fins that provide a stark contrast, likely playing a role in social signaling. Sexual dimorphism is subtle, with males typically displaying more vibrant fin coloration during breeding periods. Defensive adaptations include a laterally compressed body shape that allows for agile movements in tight spaces. The species possesses small barbels near the mouth, which are sensory organs aiding in foraging, and lacks an adipose fin, a feature common in many cyprinids. The lateral line system is well-developed, enabling the detection of water movements and vibrations, crucial for navigating its environment.
Behavior & temperament
The Borneo Red Fin Silver Shark is a social fish that typically exhibits schooling behavior, preferring to inhabit the mid to upper water column in its natural habitat. It thrives in groups, which helps reduce predation risk and fosters a dynamic social structure. Breeding behavior is characterized by egg scattering, where females release eggs into the water column, allowing for external fertilization. The species is generally peaceful but can display territorial aggression during breeding seasons or when kept in insufficient space. Its temperament is best described as moderately active, often engaging in playful interactions with conspecifics, making it a lively addition to community aquariums.
Diet & feeding
In the wild, Cyclocheilichthys janthochir is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, it requires a balanced diet consisting of high-quality flake foods, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure optimal health and coloration.
Behind the name
Cyclocheilichthys (circular + lip); janthochir (yellow + color), referring to the coloration of the fins.
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Borneo Red Fin Silver Shark?
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