Can oscars live with bolivian rams?
Verdict
No
No. Oscars and bolivian rams should not share a tank. An adult oscar eats fish that fit in its mouth, and at 3 inches bolivian rams do.
What to watch
- Deal breakerAn adult oscar eats fish that fit in its mouth, and at 3 inches bolivian rams do.
What works
- Both are fine at 74–79°F.
- pH 6–7.5 suits both.
- They use different parts of the tank: oscars the mid, bolivian rams the bottom.
Water side by side
Size to scale
Care at a glance
| Oscar | Bolivian ram | |
|---|---|---|
| Temperature | 74–81 °F | 72–79 °F |
| pH | 6–8 | 6–7.5 |
| Adult size | 12.0 in | 3.0 in |
| Minimum tank | 75 gal | 20 gal |
| Temperament | Semi-aggressive | Peaceful |
| Swims at | Middle | Bottom |
| Group | Alone or in pairs | Alone or in pairs |
| 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 bolivian rams
Questions
Can oscars live with bolivian rams?
No. Oscars and bolivian rams should not share a tank. An adult oscar eats fish that fit in its mouth, and at 3 inches bolivian rams do.
What temperature suits both oscars and bolivian rams?
74–79 °F. Oscars need 74–81 °F, bolivian rams need 72–79 °F.
What size tank do oscars and bolivian rams need together?
At least 75 gal, set by the oscar. Add space for each extra fish.







