HomeCompare fishIndian glassy fish vs Head-and-taillight tetra Indian glassy fish vs Head-and-taillight tetra: can they live together? Verdict: CompatibleBoth are comfortable at 22–26°C (72–79°F).A pH of 7.0–8.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideIndian glassy fishHead-and-taillight tetraAdult size8 cm (3.1 in)5 cm (2 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature20–30°C (68–86°F)22–26°C (72–79°F)pH7.0–8.26.0–8.0Hardness9–19 dGH (161–339 ppm)5–19 dGH (89–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesIndian glassy fishParambassis rangaHead-and-taillight tetraHemigrammus ocellifer