Can Harlequin Rasbora Live With Oscar?

Harlequin Rasbora

Harlequin Rasbora

Oscar

Oscar

Incompatible

Compatibility Score: 0/100

The Verdict

Oscar is aggressive and may harm the peaceful Harlequin Rasbora

Large size difference - smaller fish may become prey

Oscars will eat any fish that fits in their mouth - Harlequin Rasbora is at risk

Tips for Success

  • Ideal temperature range: 74-81°F
  • Minimum recommended tank size: 75 gallons

Side-by-Side Comparison

AttributeHarlequin RasboraOscar
Adult Size
2"14"
Temperature
72-81°F74-81°F
pH Range
6-7.56-8
Min Tank Size
10G75G
Temperamentpeacefulaggressive
Swim Levelmiddlemiddle
DietOmnivoreCarnivore

Recommended Tank Size

75+ gallons

Minimum for keeping these fish together

Also Compatible With Harlequin Rasbora

Neon TetraGuppyGoldfishAngelfish

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