Can Dwarf Pencilfish Live With Siamese Stone Lapping Fish?

Dwarf Pencilfish and Siamese Stone Lapping Fish CAN coexist, but with some risks. Careful setup and monitoring required.

Detailed Analysis

Temperature ⚠ Use Caution

Very narrow temperature overlap (75–76°F). Maintaining stable temp in this range may be difficult.

pH ✓ Compatible

Good pH overlap at 6.5–7.0.

Size ✓ Compatible

Compatible sizes (1.2" and 2").

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Fish occupy different water levels (Dwarf Pencilfish: middle, Siamese Stone Lapping Fish: bottom), reducing conflict.

Important Notes

  • Dwarf Pencilfish is a schooling fish and needs at least 6 of its kind.
  • Siamese Stone Lapping Fish is a schooling fish and needs at least 3 of its kind.

Tank Requirements

Minimum tank size for this combination: 18 gallons

ParameterDwarf PencilfishSiamese Stone Lapping Fish
Temperature75–82°F68–76°F
pH5–76.5–7.5
Max Size1.2"2"
TemperamentPeacefulPeaceful
Swim LevelMiddleBottom
Min Tank10 gal15 gal

Check More Combinations

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