Can Beckford's Pencilfish Live With Discus?

Beckford's Pencilfish and Discus are NOT compatible tank mates.

Detailed Analysis

Temperature ⚠ Use Caution

Very narrow temperature overlap (82–82°F). Maintaining stable temp in this range may be difficult.

pH ✓ Compatible

Good pH overlap at 5.5–7.0.

Size ✗ Not Compatible

Extreme size difference. Discus (8") may eat or bully Beckford's Pencilfish (1.5").

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

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

Important Notes

  • Beckford's Pencilfish is a schooling fish and needs at least 6 of its kind.
  • Discus is a schooling fish and needs at least 5 of its kind.

Tank Requirements

Minimum tank size for this combination: 55 gallons

ParameterBeckford's PencilfishDiscus
Temperature72–82°F82–88°F
pH5.5–7.55.5–7
Max Size1.5"8"
TemperamentPeacefulPeaceful
Swim LevelTopMiddle
Min Tank10 gal55 gal

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