Scientific name: Epalzeorhynchos bicolor
Common name: Red-Tailed Black Shark, Red-Tailed Shark, Red-Tailed Labeo
Adult Size: 6 inches (15 cm)
Temperature Range: 72 to 79°F (22 to 26°C)
pH Range: 6.5 to 7.5
Compatibility: Generally peaceful, but can be territorial, especially with their own kind and other bottom-dwelling fish. They may also become more aggressive as they mature.
Minimum Tank Size: 190 liters, but a larger tank is better for a group
Originates from: Thailand, specifically the Chao Phraya and Mekong basins
Ideal Substrate: Fine sand or small, smooth gravel
Ideal Tank Mates Suggestions: Peaceful fish such as Tetras, Barbs, Danios, and other small, community fish. They can also coexist with larger, peaceful fish, but avoid keeping them with other aggressive or territorial species.
Fish to avoid: Aggressive or large fish that might see the Red-Tailed Black Shark as food, and smaller fish that could be seen as prey. Avoid keeping them with other Red-Tailed Black Sharks or similar-looking species to prevent territorial disputes.
Diet: Omnivorous; they will eat a variety of foods including high-quality sinking pellets, live food, and frozen food. They are also known to eat algae and can help keep the tank clean.
Breeding: Red-Tailed Black Sharks are egg layers, but breeding them in captivity is extremely challenging and rarely successful. They typically scatter their eggs on plants or other surfaces. Providing dense plants or spawning mops can help protect the eggs and fry from being eaten by adult fish.