HomeCompare fishFresh water puffer fish vs Peacock gudgeon Fresh water puffer fish vs Peacock gudgeon: can they live together? Verdict: Not recommendedThe Fresh water puffer fish is best kept in a species tank.An adult Fresh water puffer fish is about 9 times the length of a Peacock gudgeon and may eat it.Both are comfortable at 24–25.6°C (75–78°F).A pH of 7.5–7.8 suits both.Side by sideFresh water puffer fishPeacock gudgeonAdult size67 cm (26 in)7.6 cm (3 in)Minimum tank1,515 L (400 US gal)40 L (11 US gal)Temperature24–26°C (75–79°F)22–25.6°C (72–78°F)pH7.5–8.37.0–7.8Hardness5–15 dGH (89–268 ppm)–Temperament–PeacefulCommunity tankNot suitable–Care level–EasyDiet–OmnivoreSpecies profilesFresh water puffer fishTetraodon mbuPeacock gudgeonTateurndina ocellicauda