Red rainbowfish vs Striped barb: can they live together?

Verdict: With caution

Their preferred pH ranges don't overlap.
Both are comfortable at 23–25°C (73–77°F).
Minimum tank for the pair: 210 L (55 US gal)

Side by side

	Red rainbowfish	Striped barb
Adult size	12 cm (4.7 in)	12 cm (4.7 in)
Minimum tank	150 L (40 US gal)	210 L (55 US gal)
Temperature	22–25°C (72–77°F)	23–26°C (73–79°F)
pH	7.0–8.0	6.0–6.5
Hardness	9–19 dGH (161–339 ppm)	2–12 dGH (36–214 ppm)
Temperament	Peaceful	Peaceful
Community tank	Good	Excellent
Care level	Easy	Easy
Diet	Omnivore	Omnivore