Dwarf Pencilfish Care Guide


Dwarf Pencilfish
(Nannostomus marginatus)

Common names:
Dwarf pencilfish.

Size: 3.5-5cm

pH: 5.5-7.0

Tempº: 24ºC - 28ºC

Tank region: Middle -Top layer

Origin: Suriname, Brazil, Peru, Guyana, Columbia.

Gender: Adult males show more red on their fins than females, and are slimmer.

Notes: This small pencilfish needs to be kept in schools of 6 or more. They are fairly timid, and should not be kept with overly boisterous tank mates or fish much bigger than them so they don’t get outcompeted for food.

A low light planted tank is ideal for this species, as they love plants in and do best in shady conditions. It is a good idea to include floating plants in their tank, as this creates an ideal shady retreat. Feeding these fish should be easy, as they should take most small foods.

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