Sphaerichthys vaillanti, Pellegrin, 1930
Origin: Indonesia, Kalimantan(Borneo), Sebroang. Sphaerichthys vaillanti has been described in 1930 by Pellegrin(Bull. Soc. Zool France, 55 : 242-244) from the Kapuas river. Olivier Perrin describes the natural habitat as follows;" Plants were absent, only the roots of trees served as refuges for the fish. The parameters of the place were pH 5.3, 20 micro S/cm, 29.5 degrees Celsius. The water was clear and slightly amber".
Etymology: Vaillanti; Named in honour of Vaillant
Synonyms:Ctenops nobilis, Vaillant, 1893.
First European import: France, 1995, by Olivier Perrin
Description: See picture
Care: Spaerichthys vaillanti should be kept in larger tanks, 80 cm minimum, and is best not kept in pairs, but rather in small groups or with other coinhabitants that originate from peat swamps like Paroshromenus sp. Water conditions pH around 4.5 and very soft water are required, temperature in the higher region. Tanned water with a low visibility and not too much light, driftwood and maybe some plants that can stand this type of environment(Javafern, Javamoss, Anubias nana, some floating plants). Sphaerichthys vaillanti pairs will establish large territoria in a tank, although no actual fighting will occur. The fish will usually inhabit the middle and lower regions of a tank, and are in general peacefull and quiet inhabitants.
Feeding: Live food, artemia and red mosquito larvae.
Size: 8.0 cm
Breeding: Mouthbreeder, the male is the mouthbreeder, while the female defends the territorium against possible intruders. To get Sphaerichthys vaillanti to breed the water schould be extremely soft and acidic, pH below 5 and dGH below 2. If the fish are kept as described in the care section breeding may occur, provided the fish are fed well and the amount of organic waste is low. After a breeding period of 10-15 days around 20, sometimes more, fry are released by the male. If breeding is performed in a species tank it's best to remove the female after breeding, since she will start to harass the male if no intruders are present.
Sexual dimorphism: Female much more colorfull than the male
Prices:Unknown, breeders sell pairs for 25-30€.
Picture references: Picture 1: Klaus Weissenberg, Picture 2 B. Jun
Hoedeman, J. J.(1969): Aquariumvissen encyclopedie 5. Elsevier Nederland B. V., Amsterdam, The Netherlands.Richter, H. J. (1979): Das Buch der Labyrinthfische. Verlag Neumann-Neudamm, Melsungen, Germany.
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