HomeCompare fishGlowlight tetra vs Garnet tetra Glowlight tetra vs Garnet tetra: can they live together? Verdict: CompatibleBoth are comfortable at 24–27°C (75–81°F).A pH of 6.0 suits both.Minimum tank for the pair: 55 L (15 US gal)Side by sideGlowlight tetraGarnet tetraAdult size5 cm (2 in)5 cm (2 in)Minimum tank40 L (11 US gal)55 L (15 US gal)Temperature24–28°C (75–82°F)23–27°C (73–81°F)pH6.0–8.05.0–6.0Hardness5–12 dGH (89–214 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentExcellentCare levelEasy–DietOmnivoreOmnivoreSpecies profilesGlowlight tetraHemigrammus erythrozonusGarnet tetraHemigrammus pulcher