Black Shark
Labeo chrysophekadion
Black Shark (Labeo chrysophekadion) — Intermediate care, Semi-aggressive, under Barb & Shark. Minimum tank in the app: 660 US gal min; aim for 68–79°F and pH 6–7.8. The Black Shark is ideal for aquarists comfortable with intermediate care levels seeking dynamic shoaling activity in larger setups.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Asia
- East & Southeast Asia
Regional colours match the stocking calculator’s origin map.
Black Shark Tank Setup
Create a spacious environment with open swimming areas complemented by dense vegetation or hiding spots to mitigate aggression. Ensure strong water flow and a sandy substrate to mimic their natural habitat. Moderate lighting will help them feel secure while encouraging active behavior.
What Do Black Sharks Eat?
Black Sharks are opportunistic feeders with a moderate feeding speed; they thrive on a varied diet of pellets, flakes, and fresh foods. Competition at feeding time can be intense, especially in smaller groups, so ensure enough food is provided to minimize stress and promote vibrant health and coloration.
Black Shark Tank Mates
Suitable tankmates include similarly sized, robust species that can withstand occasional nipping, such as larger barbs or cichlids. Avoid pairing with long-finned or slow-moving fish, as they are likely targets for fin-nipping. Maintain a minimum group size to prevent intraspecies aggression, as a larger shoal can reduce individual aggression levels.
Are Black Sharks Good for Beginners?
We rate this as intermediate. Budget time for testing, maintenance, and watching behaviour if the water looks fine but the fish do not. Aquarists often underestimate the space requirements for Black Sharks, leading to stress and aggression in confined setups. failing to provide adequate shoaling numbers can exacerbate their semi-aggressive tendencies, leading to fin-nipping and stress-related issues.
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