HomeCompare fishForktail rainbowfish vs Peppered corydoras Forktail rainbowfish vs Peppered corydoras: can they live together? Verdict: CompatibleBoth are comfortable at 25–26°C (77–79°F).A pH of 6.0–7.8 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideForktail rainbowfishPeppered corydorasAdult size5 cm (2 in)8 cm (3.1 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature24–26°C (75–79°F)25–28°C (77–82°F)pH6.0–8.06.0–7.8Hardness5–12 dGH (89–214 ppm)5–19 dGH (89–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesForktail rainbowfishPseudomugil furcatusPeppered corydorasCorydoras paleatus