HomeCompare fishGlowlight tetra vs Butterfly splitfin Glowlight tetra vs Butterfly splitfin: can they live together? Verdict: CompatibleBoth are comfortable at 26–28°C (79–82°F).A pH of 6.0–8.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideGlowlight tetraButterfly splitfinAdult size5 cm (2 in)8 cm (3.1 in)Minimum tank40 L (11 US gal)75 L (20 US gal)Temperature24–28°C (75–82°F)26–32°C (79–90°F)pH6.0–8.06.0–8.0Hardness5–12 dGH (89–214 ppm)9–19 dGH (161–339 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesGlowlight tetraHemigrammus erythrozonusButterfly splitfinAmeca splendens