Zig-zag eel vs Bleeding-heart tetra: can they live together?

Verdict: Not recommended

The Zig-zag eel is aggressive towards other fish.
An adult Zig-zag eel is about 6 times the length of a Bleeding-heart tetra and may eat it.
Both are comfortable at 23–27°C (73–81°F).
A pH of 6.5–7.2 suits both.

Side by side

	Zig-zag eel	Bleeding-heart tetra
Adult size	38 cm (15 in)	6 cm (2.4 in)
Minimum tank	475 L (125 US gal)	75 L (20 US gal)
Temperature	22–27°C (72–81°F)	23–28°C (73–82°F)
pH	6.5–7.5	5.6–7.2
Hardness	–	3–12 dGH (54–214 ppm)
Temperament	Aggressive	Peaceful
Community tank	Good	Good
Care level	Easy	Easy
Diet	Omnivore	Omnivore