Dwarf / Marginatus Pencilfish (Nannostomus marginatus) – Group of 5 Fish


The Dwarf or Marginatus Pencilfish is a colorful, small-growing species of pencilfish found throughout much of the Amazon basin and Guyana shield. Found in areas of warm, acidic, slow-moving water, they are well-suited for a peaceful community aquarium and are popular with aquascapers and planted tank hobbyists due to their color and interesting behavior. With their small adult size, they also make a great fish for nano aquariums as well. In the aquarium, they are relatively easy to care for, but care should be taken to ensure larger or faster moving tankmates don’t outcompete them for food.


Dwarf / Marginatus Pencilfish (Nannostomus marginatus) – Group of 5 Fish

Origin: Wild Brazil
Locale: Middle Rio Negro
Diet: Omnivore and micropredator. Will readily accept most frozen and prepared foods in the aquarium
Adult Size:  1″
Recommended Tank Size: 6 Gallons
Compatibility: Peaceful, an excellent community fish. May be intimidated by larger tankmates

Preferred Water Parameters
pH:                          6.5 – 7.2
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm

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