Species Comparison
Australian Rainbowfish vs Male Betta
Verdict:Compatible
Side-by-side specs
Rainbowfish
Family
Anabantoids
4″
Adult size
2.5″
40gal
Min tank
5gal
72–80°F
Temperature
76–82°F
6.5–8
pH
6.5–7.5
peaceful
Temperament
semi-aggressive
6+
Schooling
Solitary
mid
Water level
top