Head-and-taillight tetra vs Bleeding-heart tetra: can they live together?

Verdict: Compatible

Both are comfortable at 23–26°C (73–79°F).
A pH of 6.0–7.2 suits both.
Minimum tank for the pair: 75 L (20 US gal)

Side by side

	Head-and-taillight tetra	Bleeding-heart tetra
Adult size	5 cm (2 in)	6 cm (2.4 in)
Minimum tank	75 L (20 US gal)	75 L (20 US gal)
Temperature	22–26°C (72–79°F)	23–28°C (73–82°F)
pH	6.0–8.0	5.6–7.2
Hardness	5–19 dGH (89–339 ppm)	3–12 dGH (54–214 ppm)
Temperament	Peaceful	Peaceful
Community tank	Excellent	Good
Care level	Easy	Easy
Diet	Omnivore	Omnivore