HomeCompare fishZig-zag eel vs Glowlight tetra Zig-zag eel vs Glowlight tetra: can they live together? Verdict: Not recommendedThe Zig-zag eel is aggressive towards other fish.An adult Zig-zag eel is about 8 times the length of a Glowlight tetra and may eat it.Both are comfortable at 24–27°C (75–81°F).A pH of 6.5–7.5 suits both.Side by sideZig-zag eelGlowlight tetraAdult size38 cm (15 in)5 cm (2 in)Minimum tank475 L (125 US gal)40 L (11 US gal)Temperature22–27°C (72–81°F)24–28°C (75–82°F)pH6.5–7.56.0–8.0Hardness–5–12 dGH (89–214 ppm)TemperamentAggressivePeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesZig-zag eelMastacembelus armatusGlowlight tetraHemigrammus erythrozonus