HomeCompare fishBanded rainbowfish vs Yellowbelly gudgeon Banded rainbowfish vs Yellowbelly gudgeon: can they live together? Verdict: Not recommendedThe Yellowbelly gudgeon is best kept in a species tank.An adult Banded rainbowfish is about 3 times the length of a Yellowbelly gudgeon and may eat it.Both are comfortable at 21–22°C (70–72°F).A pH of 6.5–7.0 suits both.Side by sideBanded rainbowfishYellowbelly gudgeonAdult size14 cm (5.5 in)4.5 cm (1.8 in)Minimum tank210 L (55 US gal)55 L (15 US gal)Temperature18–22°C (64–72°F)21–26°C (70–79°F)pH6.5–7.25.5–7.0Hardness–2–5 dGH (36–89 ppm)TemperamentPeacefulPeacefulCommunity tankWith cautionNot suitableCare levelEasyDifficultDietOmnivoreOmnivoreSpecies profilesBanded rainbowfishMelanotaenia trifasciataYellowbelly gudgeonAllomogurnda nesolepis