HomeCompare fishPygmy gourami vs Roundtail paradisefish Pygmy gourami vs Roundtail paradisefish: can they live together? Verdict: With cautionThe Roundtail paradisefish can be semi-aggressive or nip fins.The Pygmy gourami is best kept in a species tank.Both are comfortable at 25–26°C (77–79°F).A pH of 6.0–7.0 suits both.Minimum tank for the pair: 115 L (30 US gal)Side by sidePygmy gouramiRoundtail paradisefishAdult size4 cm (1.6 in)7 cm (2.8 in)Minimum tank40 L (11 US gal)115 L (30 US gal)Temperature25–28°C (77–82°F)16–26°C (61–79°F)pH6.0–7.06.0–8.0Hardness5–19 dGH (89–339 ppm)5–19 dGH (89–339 ppm)TemperamentPeacefulSemi-aggressiveCommunity tankNot suitable–Care levelEasyEasyDietOmnivoreCarnivoreSpecies profilesPygmy gouramiTrichopsis pumilaRoundtail paradisefishMacropodus opercularis