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Nannostomus marginatus, Eigenmann, 1909

Origin: Surinam, Guyana.

Etymology: unk

Synonyms:None

First European import: Germany, 1928, by the firm Scholze and Pötschke.

Description: See pictures.

Care: Very peacefull fish, that are best kept in large schools in a species tank. A dark soil, lots of plants, some driftwood and soft slightly acidic water mimic the natural surroundings, although the fish can be kept in normal community tanks, provided the water isn't too hard(under 15dGH). A bit of current is appreciated, and waterchanges should be carried out frequently.

Temperature: 24-26 degrees.

Feeding: Omnivorous, but requires small food, and is best fed small amounts several times a day, especially in the evening.

Size: Up to 3.5 cm.

pH: 6.0-7.5

Breeding: Can be done in 40 cm tank. The tank should be densely planted, including floating plants. Very soft, acidic water, KH below 2, pH around 6, is required. The fish are egg eaters, so remove the fish afterwards. To protect the eggs prevent the parents from reaching the bottom of the tank, either with plants or with glass bars on the bottom. The eggs will hatch in a day or two, and raising the fry is not too difficult proveded enough infusoria are supplied.

Sexual dimorphism: Females are fatter than the males.

Prices: Netherlands 2-2.5€.

Additional: A color variant exists, in which the males are almost completely red.

Picture references: All pictures E. Naus

References:Baensch, H. A., Riehl, R.(1982): Aquarien Atlas I. Mergus Verlag, Melle, Germany.Innes, W. T.(1936): The complete aquarium book. Halcyon house, New York, U.S.A..

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