Black Sharkminnow Care Guide
Labeo chrysophekadion · Freshwater Fish

What Black Sharkminnow look like
Labeo chrysophekadion, commonly known as the Black Sharkminnow, exhibits a robust and laterally compressed body that can reach a maximum adult size of 24-36 inches, making it a true giant among freshwater fish. The species is characterized by its deep, powerful, and predominantly dark black coloration, which serves as a striking adaptation for camouflage in its natural habitat. The dorsal fin is prominent and well-developed, contributing to its streamlined appearance, while the thick, fleshy lips are adapted for grazing on algae and detritus. Notably, the Black Sharkminnow possesses a well-defined lateral line that aids in detecting vibrations in the water, and its dentition is adapted for an omnivorous diet, featuring both grinding and scraping capabilities. This species lacks significant sexual dimorphism, although males may exhibit slightly more pronounced dorsal fins during breeding periods. Defensive adaptations include its size and robust body, which deter potential predators.
Behavior & temperament
The Black Sharkminnow is primarily a solitary species, often found dwelling in the mid to lower regions of the water column, where it exhibits a semi-aggressive temperament. While it does not form obligate schools, it may display social hierarchies when kept in groups, with larger individuals asserting dominance over smaller ones. Breeding behavior is not well-documented in captivity, but it is believed to be an egg scatterer, releasing eggs in open water. This species is known for its territorial nature, particularly in confined spaces, and can exhibit aggression towards smaller fish or those with bright colors, making it less suitable for peaceful community tanks.
Diet & feeding
In the wild, Labeo chrysophekadion is an omnivore, feeding on a varied diet that includes algae, plant matter, and small invertebrates. In captivity, it requires a balanced diet consisting of high-quality pellets, spirulina, and occasional live or frozen foods to ensure optimal health and growth.
Behind the name
Labeo (from Latin, meaning 'to chew' or 'to graze'); chrysophekadion (from Greek, 'chrysos' meaning 'gold' and 'pheka' meaning 'to be colored', referring to its coloration).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Black Sharkminnow?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.