Bolivian Ram Alternative Name(s): Scientific Name(s): Mikrogeophagus altispinosus Category: Cichlid Difficulty: Maximum Size: 9cms Minimum Tank Volume: 75 litres Minimum Tank Size: 24" x 12" x 15" Water Temperature Range: 25-26°C Water pH Range: 6.0-7.5 Water Hardness Range: 3-12 dGH