HomeCompare fishLemon tetra vs Black phantom tetra Lemon tetra vs Black phantom tetra: can they live together? Verdict: CompatibleBoth are comfortable at 22–28°C (72–82°F).A pH of 6.0–7.5 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideLemon tetraBlack phantom tetraAdult size5 cm (2 in)4 cm (1.6 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature22–28°C (72–82°F)22–28°C (72–82°F)pH5.5–8.06.0–7.5Hardness3–25 dGH (54–446 ppm)2–18 dGH (36–321 ppm)TemperamentPeacefulPeacefulCommunity tank–ExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesLemon tetraHyphessobrycon pulchripinnisBlack phantom tetraHyphessobrycon megalopterus