Forktail rainbowfish vs Butterfly splitfin: can they live together?

Verdict: With caution

Their temperature ranges only just meet, at 26°C (79°F).
A pH of 6.0–8.0 suits both.
Minimum tank for the pair: 75 L (20 US gal)

Side by side

	Forktail rainbowfish	Butterfly splitfin
Adult size	5 cm (2 in)	8 cm (3.1 in)
Minimum tank	75 L (20 US gal)	75 L (20 US gal)
Temperature	24–26°C (75–79°F)	26–32°C (79–90°F)
pH	6.0–8.0	6.0–8.0
Hardness	5–12 dGH (89–214 ppm)	9–19 dGH (161–339 ppm)
Temperament	Peaceful	Peaceful
Community tank	Good	Good
Care level	Easy	Easy
Diet	Omnivore	Omnivore