HomeCompare fishCrescent betta vs Moonlight gourami Crescent betta vs Moonlight gourami: can they live together? Verdict: Not recommendedThe Moonlight gourami is aggressive towards other fish.The Moonlight gourami grows about twice as long as the Crescent betta; watch for bullying or predation.Both are comfortable at 25–30°C (77–86°F).A pH of 6.0–7.0 suits both.Side by sideCrescent bettaMoonlight gouramiAdult size6 cm (2.4 in)13 cm (5.1 in)Minimum tank40 L (11 US gal)110 L (29 US gal)Temperature24–30°C (75–86°F)25–30°C (77–86°F)pH6.0–7.06.0–8.0Hardness5–19 dGH (89–339 ppm)2–25 dGH (36–446 ppm)TemperamentPeacefulAggressiveCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesCrescent bettaBetta imbellisMoonlight gouramiTrichogaster microlepis