Can paradise fish live with arowanas?
Verdict
No
No. Paradise fish and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 3.5 inches paradise fish do.
What to watch
- Deal breakerAn adult silver arowana eats fish that fit in its mouth, and at 3.5 inches paradise fish do.
- Deal breakerArowanas are aggressive and much bigger than paradise fish.
- Watch outArowanas grow to 36 inches and need 250 gallons, far more than a tank set up for paradise fish.
What works
- Both are fine at 75–79°F.
- pH 6–7 suits both.
Water side by side
Size to scale
Care at a glance
| Paradise fish | Silver arowana | |
|---|---|---|
| Temperature | 61–79 °F | 75–86 °F |
| pH | 6–8 | 6–7 |
| Adult size | 3.5 in | 36.0 in |
| Minimum tank | 20 gal | 250 gal |
| Temperament | Semi-aggressive | Aggressive |
| Swims at | Top | Top |
| Group | One per tank | One per tank |
| Diet | Omnivore | Carnivore |
Better tank mates for paradise fish
Questions
Can paradise fish live with arowanas?
No. Paradise fish and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 3.5 inches paradise fish do.
What temperature suits both paradise fish and arowanas?
75–79 °F. Paradise fish need 61–79 °F, arowanas need 75–86 °F.
What size tank do paradise fish and arowanas need together?
At least 250 gal, set by the silver arowana. Add space for each extra fish.