How Many Fancy Goldfish in a 29-Gallon Tank?
In a 29-gallon tank you can comfortably keep about too few for a proper school Fancy Goldfish. As a schooling species, never keep fewer than 2.
Why
Stocking is driven by adult size and waste output, not just fish count. Fancy Goldfish reaches about 8" with a heavy bioload, and needs 60–74°F water at pH 6.5–8. Always cycle the tank and test water before adding livestock.
| Adult size | 8" |
|---|---|
| Minimum tank | 20 gallons |
| Temperature | 60–74°F |
| pH | 6.5–8 |
| Temperament | Peaceful |
| Schooling | Yes — group of 2+ |
| Diet | Omnivore |
| Care level | Easy |
| Origin | East Asia (domesticated) |