HomeCompare fishPinktail chalceus vs Red phantom tetra Pinktail chalceus vs Red phantom tetra: can they live together? Verdict: Not recommendedThe Pinktail chalceus is aggressive towards other fish.An adult Pinktail chalceus is about 6 times the length of a Red phantom tetra and may eat it.Both are comfortable at 23–25°C (73–77°F).A pH of 6.0–7.5 suits both.Side by sidePinktail chalceusRed phantom tetraAdult size25.4 cm (10 in)4 cm (1.6 in)Minimum tank210 L (55 US gal)55 L (15 US gal)Temperature23–28°C (73–82°F)22–25°C (72–77°F)pH6.0–7.55.5–7.5Hardness6–18 dGH (107–321 ppm)4–20 dGH (71–357 ppm)TemperamentAggressivePeacefulCommunity tank–ExcellentCare levelModerateEasyDietCarnivoreOmnivoreSpecies profilesPinktail chalceusChalceus macrolepidotusRed phantom tetraHyphessobrycon sweglesi