HomeCompare fishHead-and-taillight tetra vs Garnet tetra Head-and-taillight tetra vs Garnet tetra: can they live together? Verdict: CompatibleBoth are comfortable at 23–26°C (73–79°F).A pH of 6.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideHead-and-taillight tetraGarnet tetraAdult size5 cm (2 in)5 cm (2 in)Minimum tank75 L (20 US gal)55 L (15 US gal)Temperature22–26°C (72–79°F)23–27°C (73–81°F)pH6.0–8.05.0–6.0Hardness5–19 dGH (89–339 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentExcellentCare levelEasy–DietOmnivoreOmnivoreSpecies profilesHead-and-taillight tetraHemigrammus ocelliferGarnet tetraHemigrammus pulcher