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Dawkinsia filamentosus - Filament Barb, Black Spot BarbMagyarul / Hungarian
Dawkinsia filamentosus - Filament Barb, Black Spot BarbDawkinsia filamentosus - Filament Barb, Black Spot BarbDawkinsia filamentosus - Filament Barb, Black Spot BarbDawkinsia filamentosus - Filament Barb, Black Spot Barb
  • Scientific name: Dawkinsia filamentosus
  • Synonyms: Puntius filamentosus, Barbus filamentosus, Leuciscus filamentosus, Systomus filamentosus, Systomus maderaspatensis
  • Common name: Filament Barb, Black Spot Barb
  • Group: Cyprinids
  • Habitat: Asia; Southwest Indian states of Kerala, Tamil Nadu and Karnataka.
  • Size: 15-18 cm
  • Biotope: Inhabits in rivers, estuaries, marshes and coastal floodplains. Sometimes it can be found in brackish waters.
  • Social behavior: A generally peaceful and active shoaling fish. Can be kept in a community tank with peaceful, similar sized fish.
  • Diet: Omnivorous; in nature they eat worms, insects, invertebrates and also plant matter. In the aquarium they accept live foods, frozen foods, quality dried foods and vegetables.
  • Breeding: Quite easy
  • Tank: Minimum 240 litres
  • Population: 8-10 fish for 300 litres
  • Decoration: Use a dark substrate with bright lighting to encourage the fish to show its best colors. Decorate the aquarium with some bogwood and some larger smooth rocks. They prefer water-flow and well oxygenated water.
  • Temperature: 20-25 °C
  • pH: 6-7
  • Hardness: 2-15 NK°
  • Lifespan: 5-8 years

Description: In nature Puntius filamentosus can reach a maximum length of 18 cm, but in aquarium their common length is around 11-15 cm. The body color is sivlery with large, green and blue scales. The tail has a scissor-shape with a black and a red band at the tip of each caudal-fin lobe. There is a black caudal blotch on 2-5 scales, commencing posterior to anal-fin origin.

Filament Barb are hard to sex when young, but adult males are more colorful with filamented dorsal fin rays, where they get their common name. Mature females are more rounder in the belly. For breeding a 80 litres, separated tank is recommended. Place a few clumps of fine leaved plants, such as Java moss into the breeding tank where they can deposit their eggs, and use a dim lighting. Alternatively a breeding mesh with a large enough grade can be used over the substrate, so the eggs can fall through it, but the parents cannot reach them. Fill the tank with soft (gH < 8) water, that has a temperature of 24-27 °C. Puntius filamentosus can be spawned in a small gorup or in pairs. Either way condition the fish with plenty of live and frozen foods, and place them into the breeding tank in the evening. They should spawn the following morning. Provide some hiding places, as the male may be quite aggressive when pursuit the female. After spawning the parents should be removed as they will eat the eggs. The eggs hatch in 24-48 hours and the fry become free swimming 24 hours later. The fry can be fed with infusoria-type food for the first few days, until they are large enough to accept Artemia nauplii.

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