HomeCompare fishRed rainbowfish vs Peppered corydoras Red rainbowfish vs Peppered corydoras: can they live together? Verdict: With cautionTheir temperature ranges only just meet, at 25°C (77°F).A pH of 7.0–7.8 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideRed rainbowfishPeppered corydorasAdult size12 cm (4.7 in)8 cm (3.1 in)Minimum tank150 L (40 US gal)75 L (20 US gal)Temperature22–25°C (72–77°F)25–28°C (77–82°F)pH7.0–8.06.0–7.8Hardness9–19 dGH (161–339 ppm)5–19 dGH (89–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesRed rainbowfishGlossolepis incisusPeppered corydorasCorydoras paleatus