HomeCompare fishBrilliant rasbora vs Head-and-taillight tetra Brilliant rasbora vs Head-and-taillight tetra: can they live together? Verdict: CompatibleBoth are comfortable at 22–26°C (72–79°F).A pH of 6.0–6.5 suits both.Minimum tank for the pair: 110 L (29 US gal)Side by sideBrilliant rasboraHead-and-taillight tetraAdult size9 cm (3.5 in)5 cm (2 in)Minimum tank110 L (29 US gal)75 L (20 US gal)Temperature22–26°C (72–79°F)22–26°C (72–79°F)pH6.0–6.56.0–8.0Hardness–5–19 dGH (89–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiHead-and-taillight tetraHemigrammus ocellifer