Can Beckford's Pencilfish Live With Cardinal Tetra?

Beckford's Pencilfish and Cardinal Tetra are compatible tank mates!

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 73–82°F.

pH ✓ Compatible

Good pH overlap at 5.5–7.0.

Size ✓ Compatible

Compatible sizes (1.5" and 2").

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Fish occupy different water levels (Beckford's Pencilfish: top, Cardinal Tetra: middle), reducing conflict.

Important Notes

  • Beckford's Pencilfish is a schooling fish and needs at least 6 of its kind.
  • Cardinal Tetra is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 15 gallons

ParameterBeckford's PencilfishCardinal Tetra
Temperature72–82°F73–84°F
pH5.5–7.55–7
Max Size1.5"2"
TemperamentPeacefulPeaceful
Swim LevelTopMiddle
Min Tank10 gal10 gal

Check More Combinations

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