Species Comparison
Molly vs Threadfin Rainbowfish
Verdict:Not compatible
Side-by-side specs
Livebearers
Family
Rainbowfish
4″
Adult size
1.5″
20gal
Min tank
15gal
72–82°F
Temperature
75–82°F
7.5–8.5
pH
5.5–7.5
peaceful
Temperament
peaceful
3+
Schooling
6+
mid
Water level
mid
Compatibility notes
- criticalMolly grows large enough (4") to eat Threadfin Rainbowfish (1.5").