Lake Tebera Rainbowfish Alternative Name(s): Yellow Rainbowfish Scientific Name(s): Melanotaenia herbertaxelrodi Category: Tropical Difficulty: Maximum Size: 10cms Minimum Tank Volume: 100 litres Minimum Tank Size: 36" Water Temperature Range: 20-26°C Water pH Range: 7.0-8.0 Water Hardness Range: 10-15 dGH