Can flowerhorns live with arowanas?
Verdict
No
No. Flowerhorns and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 12 inches flowerhorns do.
What to watch
- Deal breakerAn adult silver arowana eats fish that fit in its mouth, and at 12 inches flowerhorns do.
- Deal breakerBoth are aggressive, and arowanas are much bigger, so flowerhorns lose.
- Watch outWater chemistry is a squeeze. The only pH that suits both is around 7.
What works
- Both are fine at 80–86°F.
- They use different parts of the tank: flowerhorns the mid, arowanas the top.
Water side by side
Size to scale
Care at a glance
| Flowerhorn | Silver arowana | |
|---|---|---|
| Temperature | 80–89 °F | 75–86 °F |
| pH | 7–8 | 6–7 |
| Adult size | 12.0 in | 36.0 in |
| Minimum tank | 75 gal | 250 gal |
| Temperament | Aggressive | Aggressive |
| Swims at | Middle | Top |
| Group | One per tank | One per tank |
| Diet | Carnivore | Carnivore |
Questions
Can flowerhorns live with arowanas?
No. Flowerhorns and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 12 inches flowerhorns do.
What temperature suits both flowerhorns and arowanas?
80–86 °F. Flowerhorns need 80–89 °F, arowanas need 75–86 °F.
What size tank do flowerhorns and arowanas need together?
At least 250 gal, set by the silver arowana. Add space for each extra fish.