HomeCompare fishClown barb vs Crescent betta Clown barb vs Crescent betta: can they live together? Verdict: With cautionThe Clown barb grows about twice as long as the Crescent betta; watch for bullying or predation.Both are comfortable at 24–28°C (75–82°F).A pH of 6.0–7.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideClown barbCrescent bettaAdult size14 cm (5.5 in)6 cm (2.4 in)Minimum tank75 L (20 US gal)40 L (11 US gal)Temperature24–28°C (75–82°F)24–30°C (75–86°F)pH6.0–7.06.0–7.0Hardness7–17 dGH (125–303 ppm)5–19 dGH (89–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesClown barbPuntius everettiCrescent bettaBetta imbellis