Can Clown Killifish Live With Harlequin Rasbora?

Clown Killifish and Harlequin Rasbora are compatible tank mates!

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 73–79°F.

pH ✓ Compatible

Good pH overlap at 6.0–7.0.

Size ✓ Compatible

Compatible sizes (1.4" and 2").

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Fish occupy different water levels (Clown Killifish: top, Harlequin Rasbora: middle), reducing conflict.

Important Notes

  • Clown Killifish is a schooling fish and needs at least 4 of its kind.
  • Harlequin Rasbora is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 10 gallons

ParameterClown KillifishHarlequin Rasbora
Temperature73–79°F72–82°F
pH5.5–76–7.5
Max Size1.4"2"
TemperamentPeacefulPeaceful
Swim LevelTopMiddle
Min Tank5 gal10 gal

Check More Combinations

Use our compatibility checker to add more fish and plan your complete tank.