Can bettas and harlequin rasboras live together?
!
Yes, with care
They can share a tank of at least 10 gallons, but betta can bully smaller, peaceful harlequin rasbora.
Temperature °F
Betta
76–82
Harlequin rasbora
72–81
Both
76–81
pH
Betta
6–7.5
Harlequin rasbora
6–7.5
Both
6–7.5
10 galsmallest tank for both
1 + 6minimum group of each
2.5″ / 2″adult size
Why
- !Betta can bully smaller, peaceful Harlequin rasbora.
- ✓Both are comfortable at 76–81°F.
- ✓Both do well at pH 6–7.5.
Verdicts come from TankCoach's own species data and the same rules as the stocking calculator. Individual fish vary; watch new tankmates closely for the first days.
About these fish: Betta · Harlequin rasbora