Red Tailed Black Shark Alternative Name(s): Scientific Name(s): Epalzeorhynchos bicolor Category: Tropical Difficulty: Maximum Size: 13cms Minimum Tank Volume: 250 litres Minimum Tank Size: At least 48 inches long Water Temperature Range: 23-26°C Water pH Range: 6.5-7.5 Water Hardness Range: 5-15 dGH