HomeCompare fishGreen terror vs Threespot eartheater Green terror vs Threespot eartheater: can they live together? Verdict: Not recommendedThe Green terror is aggressive towards other fish.Both are comfortable at 23–24°C (73–75°F).A pH of 6.5–7.0 suits both.Side by sideGreen terrorThreespot eartheaterAdult size23 cm (9.1 in)17 cm (6.7 in)Minimum tank210 L (55 US gal)210 L (55 US gal)Temperature20–24°C (68–75°F)23–28°C (73–82°F)pH6.5–7.56.3–7.0Hardness4–20 dGH (71–357 ppm)5–10 dGH (89–178 ppm)TemperamentAggressivePeacefulCare levelEasyModerateDietOmnivoreOmnivoreSpecies profilesGreen terrorAequidens rivulatusThreespot eartheaterSatanoperca daemon