HomeCompare fishThreespot eartheater vs Redhump eartheater Threespot eartheater vs Redhump eartheater: can they live together? Verdict: CompatibleBoth are comfortable at 24–26°C (75–79°F).A pH of 6.5–7.0 suits both.Minimum tank for the pair: 285 L (75 US gal)Side by sideThreespot eartheaterRedhump eartheaterAdult size17 cm (6.7 in)20 cm (7.9 in)Minimum tank210 L (55 US gal)285 L (75 US gal)Temperature23–28°C (73–82°F)24–26°C (75–79°F)pH6.3–7.06.5–7.0Hardness5–10 dGH (89–178 ppm)5–15 dGH (89–268 ppm)TemperamentPeacefulPeacefulCommunity tank–ExcellentCare levelModerateModerateDietOmnivoreOmnivoreSpecies profilesThreespot eartheaterSatanoperca daemonRedhump eartheaterGeophagus steindachneri