HomeCompare fishMoonlight gourami vs Roundtail paradisefish Moonlight gourami vs Roundtail paradisefish: can they live together? Verdict: Not recommendedThe Roundtail paradisefish can be semi-aggressive or nip fins.The Moonlight gourami is aggressive towards other fish.Both are comfortable at 25–26°C (77–79°F).A pH of 6.0–8.0 suits both.Side by sideMoonlight gouramiRoundtail paradisefishAdult size13 cm (5.1 in)7 cm (2.8 in)Minimum tank110 L (29 US gal)115 L (30 US gal)Temperature25–30°C (77–86°F)16–26°C (61–79°F)pH6.0–8.06.0–8.0Hardness2–25 dGH (36–446 ppm)5–19 dGH (89–339 ppm)TemperamentAggressiveSemi-aggressiveCommunity tankGood–Care levelEasyEasyDietOmnivoreCarnivoreSpecies profilesMoonlight gouramiTrichogaster microlepisRoundtail paradisefishMacropodus opercularis