Can Emperor Tetra Live With Sailfin Molly?

Emperor Tetra and Sailfin Molly CAN coexist, but with some risks. Careful setup and monitoring required.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–81°F.

pH ⚠ Use Caution

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

Size ✓ Compatible

Compatible sizes (2" and 6").

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Swim level compatibility is fine.

Trait Conflict ⚠ Use Caution

Sailfin Molly may prefer brackish water conditions, which Emperor Tetra cannot tolerate long-term.

Important Notes

  • Emperor Tetra is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 30 gallons

ParameterEmperor TetraSailfin Molly
Temperature73–81°F75–82°F
pH5.5–7.57.5–8.5
Max Size2"6"
TemperamentPeacefulPeaceful
Swim LevelMiddleMiddle
Min Tank15 gal30 gal

Check More Combinations

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