Can bettas and fancy goldfish live together?
✕
No
Betta and Fancy goldfish need different temperatures (76–82°F vs 65–72°F).
Temperature °F
Betta
76–82
Fancy goldfish
65–72
Bothnone
pH
Betta
6–7.5
Fancy goldfish
7–8
Both
7–7.5
30 galsmallest tank for both
1 + 1minimum group of each
2.5″ / 8″adult size
Why
- ✕Betta and Fancy goldfish need different temperatures (76–82°F vs 65–72°F).
- ✕Betta attacks, or is attacked by, Fancy goldfish.
- ✓Both do well at pH 7–7.5.
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 · Fancy goldfish