Black ghost vs Butterfly splitfin: can they live together?

Verdict: Not recommended

The Black ghost is aggressive towards other fish.
An adult Black ghost is about 6 times the length of a Butterfly splitfin and may eat it.
Both are comfortable at 26–28°C (79–82°F).
A pH of 6.0–8.0 suits both.

Side by side

	Black ghost	Butterfly splitfin
Adult size	50 cm (20 in)	8 cm (3.1 in)
Minimum tank	210 L (55 US gal)	75 L (20 US gal)
Temperature	23–28°C (73–82°F)	26–32°C (79–90°F)
pH	6.0–8.0	6.0–8.0
Hardness	5–10 dGH (89–178 ppm)	9–19 dGH (161–339 ppm)
Temperament	Aggressive	Peaceful
Community tank	Good	Good
Care level	Moderate	Easy
Diet	Omnivore	Omnivore