Common Goldfish
Carassius auratus — Classic single-tailed goldfish; gets large, needs cool water, destroys plants, high waste producer.
Care at a glance
| Scientific name | Carassius auratus |
|---|---|
| Type | schooling |
| Adult size | 12" |
| Minimum tank | 30 gal |
| Group size | 2+ |
| Temperament | peaceful |
| Temperature | 50-72°F |
| pH | 6.5-8.0 |
| GH | 5-19 |
| Diet | Goldfish pellets, veg, frozen foods |
| Swimming zone | all |
| Care level | easy |
| Plant-safe | No |