HomeCompare fishGlowlight tetra vs Red phantom tetra Glowlight tetra vs Red phantom tetra: can they live together? Verdict: CompatibleBoth are comfortable at 24–25°C (75–77°F).A pH of 6.0–7.5 suits both.Minimum tank for the pair: 55 L (15 US gal)Side by sideGlowlight tetraRed phantom tetraAdult size5 cm (2 in)4 cm (1.6 in)Minimum tank40 L (11 US gal)55 L (15 US gal)Temperature24–28°C (75–82°F)22–25°C (72–77°F)pH6.0–8.05.5–7.5Hardness5–12 dGH (89–214 ppm)4–20 dGH (71–357 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesGlowlight tetraHemigrammus erythrozonusRed phantom tetraHyphessobrycon sweglesi