Can oscars live with zebra plecos?

Verdict
No

No. Oscars and zebra plecos should not share a tank. An adult oscar eats fish that fit in its mouth, and at 3.5 inches zebra plecos do.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 79–81°Oscar 74–81°Zebra pleco 79–88°
The green band is the temperature range both can live in.
456789Both: 6–7.5Oscar 6–8Zebra pleco 6–7.5
The green band is the pH both tolerate.

Size to scale

Oscar · 12 inZebra pleco · 3.5 in0"2"4"6"8"10"12"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

OscarZebra pleco
Temperature74–81 °F79–88 °F
pH6–86–7.5
Adult size12.0 in3.5 in
Minimum tank75 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleBottom
GroupAlone or in pairsAlone or in pairs
DietCarnivoreCarnivore

Better tank mates for oscars

All oscar tank mates

Better tank mates for zebra plecos

All zebra pleco tank mates

Questions

Can oscars live with zebra plecos?

No. Oscars and zebra plecos should not share a tank. An adult oscar eats fish that fit in its mouth, and at 3.5 inches zebra plecos do.

What temperature suits both oscars and zebra plecos?

79–81 °F. Oscars need 74–81 °F, zebra plecos need 79–88 °F.

What size tank do oscars and zebra plecos need together?

At least 75 gal, set by the oscar. Add space for each extra fish.