Can arowanas live with tinfoil barbs?
Verdict
No
No. Arowanas and tinfoil barbs should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 12 inches tinfoil barbs do.
What to watch
- Deal breakerAn adult silver arowana eats fish that fit in its mouth, and at 12 inches tinfoil barbs do.
- Deal breakerArowanas are aggressive and will bully peaceful tinfoil barbs.
What works
- Both are fine at 75–80°F.
- pH 6.5–7 suits both.
- They use different parts of the tank: arowanas the top, tinfoil barbs the mid.
Water side by side
Size to scale
Care at a glance
| Silver arowana | Tinfoil barb | |
|---|---|---|
| Temperature | 75–86 °F | 72–80 °F |
| pH | 6–7 | 6.5–7.5 |
| Adult size | 36.0 in | 12.0 in |
| Minimum tank | 250 gal | 125 gal |
| Temperament | Aggressive | Peaceful |
| Swims at | Top | Middle |
| Group | One per tank | Groups of 5+ |
| Diet | Carnivore | Omnivore |
Better tank mates for tinfoil barbs
Questions
Can arowanas live with tinfoil barbs?
No. Arowanas and tinfoil barbs should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 12 inches tinfoil barbs do.
What temperature suits both arowanas and tinfoil barbs?
75–80 °F. Arowanas need 75–86 °F, tinfoil barbs need 72–80 °F.
What size tank do arowanas and tinfoil barbs need together?
At least 250 gal, set by the silver arowana. Add space for each extra fish.







