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CORAL RED PENCIL FISH (Nannostomus mortenthaleri)

CORAL RED PENCIL FISH (Nannostomus mortenthaleri)

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Common Names: Red arc pencilfish, Peruvian red pencilfish, coral red pencilfish, ruby red pencilfish


Type Locality: Peru: a small tributary of Rio Nanay at the village of Alvarenga, Loreto, Province of Maynas (Iquitos)


Range: Apparently very limited in range


Taxonomic Troubles: Originally described as Nannostomus marginatus mortenthaleri


Size: 3.9 cm TL (1.5 inches)


Preferred Water Chemistry: Tropical, soft, slightly acidic.


Difficulty: A hardy pencil, quite assertive for its size.


Tank Setup: This is an active, schooling species that should always be kept in groups, which will also diffuse aggression. A planted tank is best. Can be kept with any other fish that are not big enough to eat them.


Feeding: A micropredator. Relishes live or frozen foods, tank-bred specimens will readily take all regular aquarium fare.


Breeding: This species is only starting to be bred by aquarists. It does not appear to be too difficult to spawn.


Fish Description

Widely heralded as the all-red pencilfish, this species looks like N. marginatus painted red. Males are more colorful, but females are not drab.

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