this is how looks yours?
Minimum Tank Size: 50 gallons
Care Level: Moderate
Tank Conditions: 72-79°F; pH 6.5-7.5; dH 10-15
Temperament: Semi-aggressive
Max. Size In Aquarium: Up to 4"
Diet: Omnivore
Origin: Farm Raised, Thailand
Family: Cyprinidae
The Redtail Shark, also known as the Redtail Black Shark is great for the semi-aggressive community aquarium, as long as they are the sole sharks and the other tankmates are of similar size. The Redtail Shark is a beautiful fish with a jet black body and a bright red tail. The dorsal fin is marked with a white tip.
It requires a large aquarium with driftwood, rocks, and spots of dense vegetation. This shark may set up territories around the aquarium. The Redtail Shark will become very aggressive towards its own species when mature.
Unfortunately, the breeding habits of the Redtail Shark have not been documented.
An omnivore, the Redtail Shark is not a particularly finicky eater. Flake food, freeze-dried bloodworms and tubifex, as well as vegetable-based foods should be fed.
Ideal tank mates include: Barbs, Danios, Gouramis, Rainbowfish, similar sized New World Cichlids, Loaches, Plecos, and similar sized Scavenger Catfish.
thats what i searched to give you a little information for your shark
hope that helped
Dolores,