How Many Tiger Barb in a 125-Gallon Tank?
In a 125-gallon tank you can comfortably keep about 8–44 Tiger Barb. As a schooling species, never keep fewer than 8.
Why
Stocking is driven by adult size and waste output, not just fish count. Tiger Barb reaches about 2.8" with a moderate bioload, and needs 74–82°F water at pH 6–8. Always cycle the tank and test water before adding livestock.
| Adult size | 2.8" |
|---|---|
| Minimum tank | 20 gallons |
| Temperature | 74–82°F |
| pH | 6–8 |
| Temperament | Semi-aggressive |
| Schooling | Yes — group of 8+ |
| Diet | Omnivore |
| Care level | Easy |
| Origin | Sumatra and Borneo |