Serpae tetra

Blutsalmler in the aquarium

The Blutsalmler ( Hyphessobrycon eques, Syn callistus H., H. serpae ), also erroneously called Serpasalmler, is one of the Amazon basin, the lower Río Paraguay, Rio Guaporé, upper Paraná River and tributaries of the Río Uruguay in southern Brazil, Bolivia, Paraguay and Argentina -based Salmlerart. In French Guiana, the fish has been introduced by humans.

Features

It owes its name Blutsalmler the reddish color of its body. His body is elongated, moderately high backs and sides strongly flattened. Females are deep-bodied. The Blutsalmler is four inches long. In addition to the basic reddish color indicates the type of a teardrop-shaped, black shoulder spot, which can fade in older animals, however. The dorsal fin is red at the base, otherwise black with a white top of the anal fin is red with a broad black border. Your first fin rays are white. The other fins are red.

The premaxilla has two rows of teeth, the interior consists of five three - or vierspitzigen teeth. On the short maxilla two to three dreispitzige teeth are very close together.

• Fins formula: Dorsal 10-11, 27-30 Anal.
• Dandruff formula: MLR 31-33, QR 6-7/4, SL 5

Way of life

Hyphessobrycon eques inhabited preferred unshaded, lake-like waters and streams of extensive, marshy flood plains. He lives there in the riparian zone near lush plant populations often in the edge zone where the water surface is largely free of plants. In case of danger, he fled immediately in the thick vegetation.

PH measurements at different sites showed acidic to slightly alkaline reactions ( 5.5 - 7.6), values ​​for the carbonate below the detection limit up to values ​​around 7 ° dH and conductivity values ​​from 10 to 240 ĩS / cm.

Blutsalmler have a wide temperature tolerance. During temperature measurements of the tropical waters usually showed values ​​24 to 30 ° C, ( the Southern Hemisphere ) a water temperature of only 6.3 ° C measured at a locality in Argentina in winter.

Hunting and

Normally the care of the Blutsalmlers in the community tank is not a problem, even if it is not always peaceful in comparison to other species of the genus Hyphesso and occasionally shows clear, intraspecific aggression. Weaker conspecifics can be gnawed, lost eyes due to brawls. The reason may lie in an insufficient diet or be the result of overstocking because Blutsalmler Although social group animals but at the same time require a minimum distance to conspecifics.

Most come in the aquaristic animals originate from German bred or Asian imports.

Swell