HomeCompare fishGlass catfish vs Gulf gambusia Glass catfish vs Gulf gambusia: can they live together? Verdict: Not recommendedAn adult Glass catfish is about 3 times the length of a Gulf gambusia and may eat it.Both are comfortable at 22–25°C (72–77°F).A pH of 6.5–7.0 suits both.Side by sideGlass catfishGulf gambusiaAdult size15 cm (5.9 in)5 cm (2 in)Minimum tank150 L (40 US gal)20 L (5 US gal)Temperature21–26°C (70–79°F)22–25°C (72–77°F)pH6.5–7.06.5–7.8Hardness8–18 dGH (143–321 ppm)–TemperamentPeaceful–Community tankGoodGoodCare levelEasy–DietCarnivoreOmnivoreSpecies profilesGlass catfishKryptopterus bicirrhisGulf gambusiaGambusia vittata