Can harlequin rasboras and fancy goldfish live together?
With care
Harlequin rasboras and fancy goldfish can share a tank, but there is something to watch.
Why
- Their temperature ranges only meet at 72°F (22°C), which leaves no margin.
- Goldfish are slow, messy, cold-water fish. They do best in a tank with other goldfish.
What each one needs
| Harlequin rasbora | Fancy goldfish | Both | |
|---|---|---|---|
| Temperature | 72–80°F (22–27°C) | 65–72°F (18–22°C) | 72–72°F (22–22°C) |
| pH | 6.0–7.5 | 7.0–8.0 | 7.0–7.5 |
| Minimum tank | 10 gal (38 L) | 20 gal (76 L) | 20 gal (76 L) |
| Keep at least | 6 | 1 | |
| Adult size | 1.8 in (4.6 cm) | 7 in (17.8 cm) |
The smallest tank for both
A 29 gallons (110 L) tank holds 6 harlequin rasboras and 1 fancy goldfish at about 72% of its stocking limit, which leaves room for more.