Can Cobalt Blue Zebra Live With Harlequin Rasbora?

Cobalt Blue Zebra and Harlequin Rasbora are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–82°F.

pH ⚠ Use Caution

Very narrow pH overlap (7.5–7.5). Hard to maintain precisely.

Size ✓ Compatible

Compatible sizes (5" and 2").

Temperament ✗ Not Compatible

Cobalt Blue Zebra (aggressive) is not compatible with Harlequin Rasbora (peaceful). Aggression or stress is very likely.

Swim Level ⚠ Use Caution

Both fish occupy the middle level and Cobalt Blue Zebra is territorial. Provide plenty of space and hiding spots.

Important Notes

  • Harlequin Rasbora is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 60 gallons

ParameterCobalt Blue ZebraHarlequin Rasbora
Temperature75–82°F72–82°F
pH7.5–8.56–7.5
Max Size5"2"
TemperamentAggressivePeaceful
Swim LevelMiddleMiddle
Min Tank55 gal10 gal

Check More Combinations

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