HomeCompare fishGlowlight tetra vs Glass catfish Glowlight tetra vs Glass catfish: can they live together? Verdict: Not recommendedAn adult Glass catfish is about 3 times the length of a Glowlight tetra and may eat it.Both are comfortable at 24–26°C (75–79°F).A pH of 6.5–7.0 suits both.Side by sideGlowlight tetraGlass catfishAdult size5 cm (2 in)15 cm (5.9 in)Minimum tank40 L (11 US gal)150 L (40 US gal)Temperature24–28°C (75–82°F)21–26°C (70–79°F)pH6.0–8.06.5–7.0Hardness5–12 dGH (89–214 ppm)8–18 dGH (143–321 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentGoodCare levelEasyEasyDietOmnivoreCarnivoreSpecies profilesGlowlight tetraHemigrammus erythrozonusGlass catfishKryptopterus bicirrhis