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Dwarf Pencilfish Aquarium Care Guide

Nannostomus marginatus

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Keeping Dwarf Pencilfish in an aquarium requires the right conditions.

Aquarium Information

  • Care level: intermediate
  • Temperament: peaceful
  • Diet: omnivore
  • Minimum tank size: 10 gallons (38 liters)
  • Compatibility: Excellent for community tanks with other small, peaceful fish such as other Nannostomus species, small tetras, rasboras, corydoras, and dwarf cichlids. Avoid housing with large or aggressive fish that may prey on them or outcompete them for food.
  • Special requirements: Requires a well-planted aquarium with plenty of hiding spots and subdued lighting. A dark substrate and floating plants can help bring out their best coloration and reduce stress. They are schooling fish and should be kept in groups of at least 6-10 individuals to thrive and display natural behaviors. Good water quality is paramount, with regular small water changes.

Water parameters

Temperature
22-28°C (72-82°F)
pH level
5.5-7.0
Hardness
2-10 dGH

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