HomeCompare fishBloodfin tetra vs Glass catfish Bloodfin tetra vs Glass catfish: can they live together? Verdict: With cautionThe Glass catfish grows about twice as long as the Bloodfin tetra; watch for bullying or predation.Both are comfortable at 21–26°C (70–79°F).A pH of 6.5–7.0 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideBloodfin tetraGlass catfishAdult size5.5 cm (2.2 in)15 cm (5.9 in)Minimum tank75 L (20 US gal)150 L (40 US gal)Temperature18–28°C (64–82°F)21–26°C (70–79°F)pH6.0–8.06.5–7.0Hardness10–30 dGH (178–535 ppm)8–18 dGH (143–321 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentGoodCare levelEasyEasyDietOmnivoreCarnivoreSpecies profilesBloodfin tetraAphyocharax anisitsiGlass catfishKryptopterus bicirrhis