HomeCompare fishPeppered corydoras vs Emerald catfish Peppered corydoras vs Emerald catfish: can they live together? Verdict: CompatibleBoth are comfortable at 25–28°C (77–82°F).A pH of 6.0–7.8 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sidePeppered corydorasEmerald catfishAdult size8 cm (3.1 in)8 cm (3.1 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature25–28°C (77–82°F)22–28°C (72–82°F)pH6.0–7.85.8–8.0Hardness5–19 dGH (89–339 ppm)2–30 dGH (36–535 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesPeppered corydorasCorydoras paleatusEmerald catfishBrochis splendens