HomeCompare fishMolly vs Bluetail goodea Molly vs Bluetail goodea: can they live together? Verdict: With cautionThe Bluetail goodea is best kept in a species tank.Both are comfortable at 22–26°C (72–79°F).A pH of 7.5–7.6 suits both.Side by sideMollyBluetail goodeaAdult size10 cm (3.9 in)7.6 cm (3 in)Temperature21–26°C (70–79°F)22–30°C (72–86°F)pH7.5–8.26.8–7.6Hardness11–30 dGH (196–535 ppm)–TemperamentPeacefulPeacefulCommunity tank–Not suitableCare levelEasyModerateDietOmnivore–Species profilesMollyPoecilia sphenopsBluetail goodeaAtaeniobius toweri