Can Common Goldfish Live With Mosquitofish?
Common Goldfish and Mosquitofish CAN coexist, but with some risks. Careful setup and monitoring required.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 55–74°F.
pH
✓ Compatible
Good pH overlap at 6.5–8.0.
Size
⚠ Use Caution
Significant size difference (12" vs 2.5"). Common Goldfish may bully or stress Mosquitofish.
Temperament
⚠ Use Caution
Common Goldfish (peaceful) may have issues with Mosquitofish (semi-aggressive). Monitor closely if attempting.
Swim Level
✓ Compatible
Swim level compatibility is fine.
Tank Requirements
Minimum tank size for this combination: 35 gallons
| Parameter | Common Goldfish | Mosquitofish |
|---|---|---|
| Temperature | 50–74°F | 55–85°F |
| pH | 6.5–8 | 6–8.5 |
| Max Size | 12" | 2.5" |
| Temperament | Peaceful | Semi-aggressive |
| Swim Level | All | Top |
| Min Tank | 30 gal | 10 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.