HomeCompare fishRedbreast acara vs Threespot eartheater Redbreast acara vs Threespot eartheater: can they live together? Verdict: Not recommendedThe Redbreast acara is aggressive towards other fish.The Threespot eartheater grows about twice as long as the Redbreast acara; watch for bullying or predation.Both are comfortable at 25–28°C (77–82°F).A pH of 6.3–7.0 suits both.Side by sideRedbreast acaraThreespot eartheaterAdult size7.5 cm (3 in)17 cm (6.7 in)Minimum tank115 L (30 US gal)210 L (55 US gal)Temperature25–29°C (77–84°F)23–28°C (73–82°F)pH6.0–7.56.3–7.0Hardness1–20 dGH (18–357 ppm)5–10 dGH (89–178 ppm)TemperamentAggressivePeacefulCare levelEasyModerateDietOmnivoreOmnivoreSpecies profilesRedbreast acaraLaetacara dorsigeraThreespot eartheaterSatanoperca daemon