Can oscars live with rainbow sharks?
Verdict
Yes
Yes, oscars and rainbow sharks can live together. Both are fine at 74–80°F. Plan on at least 75 gal.
Why it works
- Both are fine at 74–80°F.
- pH 6.5–7.5 suits both.
- They use different parts of the tank: oscars the mid, rainbow sharks the bottom.
Water side by side
Size to scale
Care at a glance
| Oscar | Rainbow shark | |
|---|---|---|
| Temperature | 74–81 °F | 72–80 °F |
| pH | 6–8 | 6.5–7.5 |
| Adult size | 12.0 in | 6.0 in |
| Minimum tank | 75 gal | 55 gal |
| Temperament | Semi-aggressive | Semi-aggressive |
| Swims at | Middle | Bottom |
| Group | Alone or in pairs | One per tank |
| Diet | Carnivore | Omnivore |
Better tank mates for oscars
Common plecoYes
Clown loachYes
Black ghost knifeYes
BichirYes
Elephant nose fishYes
Chinese algae eaterYes
Better tank mates for rainbow sharks
Questions
Can oscars live with rainbow sharks?
Yes, oscars and rainbow sharks can live together. Both are fine at 74–80°F. Plan on at least 75 gal.
What temperature suits both oscars and rainbow sharks?
74–80 °F. Oscars need 74–81 °F, rainbow sharks need 72–80 °F.
What size tank do oscars and rainbow sharks need together?
At least 75 gal, set by the oscar. Add space for each extra fish.