Zig-zag eel vs Slim betta: can they live together?

Verdict: Not recommended

The Slim betta can be semi-aggressive or nip fins.
The Zig-zag eel is aggressive towards other fish.
An adult Zig-zag eel is about 4 times the length of a Slim betta and may eat it.
Both are comfortable at 24–27°C (75–81°F).
A pH of 6.5–7.5 suits both.

Side by side

	Zig-zag eel	Slim betta
Adult size	38 cm (15 in)	10 cm (3.9 in)
Minimum tank	475 L (125 US gal)	75 L (20 US gal)
Temperature	22–27°C (72–81°F)	24–30°C (75–86°F)
pH	6.5–7.5	6.5–7.5
Hardness	–	5–15 dGH (89–268 ppm)
Temperament	Aggressive	Semi-aggressive
Community tank	Good	Good
Care level	Easy	Easy
Diet	Omnivore	Omnivore