Can Oscar live with Tiger Barb?

Not recommended

Why

Side-by-side

OscarTiger Barb
Temperature74–81°F74–82°F
pH6–86–8
Hardness (GH)5–20 dGH4–15 dGH
Adult size16"2.75"
TemperamentAggressiveSemi-aggressive
Min tank75 gal20 gal

Together, plan on at least 75 gallons.

Compatible alternatives

Instead of Oscar (to keep Tiger Barb):

Instead of Tiger Barb (to keep Oscar):

Design the whole tank, not just the stocking

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Everything compatible with Oscar · …with Tiger Barb

Related pairings

Oscar + Neon TetraOscar + Cherry ShrimpOscar + AngelfishOscar + Nerite SnailOscar + Amano ShrimpOscar + Harlequin Rasbora