Can oscars live with flowerhorns?
Verdict
Yes, with care
Yes, with care. Oscars and flowerhorns can share a tank, but watch one thing. They only share 80–81°F. Keep the heater set there and steady.
What to watch
- Watch outThey only share 80–81°F. Keep the heater set there and steady.
- Watch outFlowerhorns are aggressive. Oscars hold their own only in a big tank with places to hide.
What works
- pH 7–8 suits both.
Water side by side
Size to scale
Care at a glance
| Oscar | Flowerhorn | |
|---|---|---|
| Temperature | 74–81 °F | 80–89 °F |
| pH | 6–8 | 7–8 |
| Adult size | 12.0 in | 12.0 in |
| Minimum tank | 75 gal | 75 gal |
| Temperament | Semi-aggressive | Aggressive |
| Swims at | Middle | Middle |
| Group | Alone or in pairs | One per tank |
| Diet | Carnivore | Carnivore |
Better tank mates for oscars
Common plecoYes
Clown loachYes
Black ghost knifeYes
BichirYes
Elephant nose fishYes
Chinese algae eaterYes
Questions
Can oscars live with flowerhorns?
Yes, with care. Oscars and flowerhorns can share a tank, but watch one thing. They only share 80–81°F. Keep the heater set there and steady.
What temperature suits both oscars and flowerhorns?
80–81 °F. Oscars need 74–81 °F, flowerhorns need 80–89 °F.
What size tank do oscars and flowerhorns need together?
At least 75 gal, set by the oscar. Add space for each extra fish.