HomeCompare fishGoldeneye cichlid vs Slim betta Goldeneye cichlid vs Slim betta: can they live together? Verdict: With cautionThe Slim betta can be semi-aggressive or nip fins.Both are comfortable at 24–27°C (75–81°F).A pH of 6.5–7.5 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideGoldeneye cichlidSlim bettaAdult size7.5 cm (3 in)10 cm (3.9 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature24–27°C (75–81°F)24–30°C (75–86°F)pH6.0–8.06.5–7.5Hardness5–19 dGH (89–339 ppm)5–15 dGH (89–268 ppm)TemperamentPeacefulSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietCarnivoreOmnivoreSpecies profilesGoldeneye cichlidNannacara anomalaSlim bettaBetta bellica