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Potamotrygon laticeps Click to see the full size picture.
Potamotrygon laticeps, Garman, 1913


Origin:Brazil, Paraguay, Uruguay and Argentina.

Etymology: Unk.

Synonyms:Paratrygon laticeps

First import: Unk

Description:See picture.

Care: Large tank, 500-1000 liter, pH neutral to slightly acidic, hardness below 15 dGH. Temperature around 24 degrees.Potamotrygon laticeps, click to see the full size picture! Frequent waterchanges and well filtered water(huge filters!)are necessary, the fish pollute a lot since they produce pure urine with their kidneys. No or a few hardy plants, combined with driftwood or stones on the sides of the tank, although this sin't necessary for the animals. A thick sandy soil in which the fish can dig themselves in is a requirement, as well as a large free space(minimum 3 times the bodysize).

Temperature: 23-28 degrees.

Feeding: Snails and molluscs, also frozen. The fish can be accustomed to eat beefheart and fish meat.

Size: Up to 70cm.

pH: 6.0-7.5

Breeding: Vivipair!, the fish bring live young into the world. In the mating season(sept-nov) the male will "grab" the female with it's "claws", and inseminate her. Up to 7 fry have been reported in Paratrygon motoro, which will be carried by the mother for 4-5 months, before they are born.

Sexual dimorphism:Males have very characteristic organs.

Prices: 50-100€

Additional: The fish wil attack, and can cause serious wounds, which may take a long time to heal. Wear thick leather gloves when handling the tank or the fish.

Picture references:Picture 1,2 and 3: E. Naus

References: Fenner, R. (1999): De zoetwaterstekelroggen van Zuid-Amerika; Het Aquarium, Jrg 69, Nr 7, p.p. 255-256.

 

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