Can Least Killifish Live With Spotted Headstander?

Least Killifish and Spotted Headstander CAN coexist, but with some risks. Careful setup and monitoring required.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–80°F.

pH ✓ Compatible

Good pH overlap at 6.5–7.0.

Size ⚠ Use Caution

Significant size difference (3.5" vs 1"). Spotted Headstander may bully or stress Least Killifish.

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Fish occupy different water levels (Least Killifish: top, Spotted Headstander: middle), reducing conflict.

Important Notes

  • Least Killifish is a schooling fish and needs at least 4 of its kind.
  • Spotted Headstander is a schooling fish and needs at least 5 of its kind.

Tank Requirements

Minimum tank size for this combination: 30 gallons

ParameterLeast KillifishSpotted Headstander
Temperature66–80°F75–82°F
pH6.5–85.5–7
Max Size1"3.5"
TemperamentPeacefulPeaceful
Swim LevelTopMiddle
Min Tank5 gal30 gal

Check More Combinations

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