HomeCompare fishZig-zag eel vs Glass catfish Zig-zag eel vs Glass catfish: can they live together? Verdict: Not recommendedThe Zig-zag eel is aggressive towards other fish.The Zig-zag eel grows about twice as long as the Glass catfish; watch for bullying or predation.Both are comfortable at 22–26°C (72–79°F).A pH of 6.5–7.0 suits both.Side by sideZig-zag eelGlass catfishAdult size38 cm (15 in)15 cm (5.9 in)Minimum tank475 L (125 US gal)150 L (40 US gal)Temperature22–27°C (72–81°F)21–26°C (70–79°F)pH6.5–7.56.5–7.0Hardness–8–18 dGH (143–321 ppm)TemperamentAggressivePeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreCarnivoreSpecies profilesZig-zag eelMastacembelus armatusGlass catfishKryptopterus bicirrhis