Reproduction:Scatters eggs throughout the aquarium and
are not cared for by the parents. Aquarium
Care: Said to be a bit more problematic in
the aquarium if good water quality is not adhered
to. They rest on aquatic vegetation in the aquarium
so long leaved plants are recommended. Cooler temperatures
and a strong filtration with adequate current will
fare better for this species and for this genera overall.
Diet: Will feed on flake, algae,
tablet foods and algae wafers. Etymology:
nigri-, black; cauda, tail, referring to “deep
black” caudal fin (with outer rays spotted with
white).
South America:Paraná/Paraguay River basin. Type
locality: Rio Grande do Sul, Brazil.
Size:
5.0cm. (2ins)
Temp:
20-24°c (67-75°f.)
p.H.
6.0-7.5.
IUCN
Red List
Hisonotus
nigricauda is distributed in the Patos Lagoon system
and the Uruguay River basin, south of the mouth of the
Ibicuí River (Brazil, Uruguay, and Argentina).
It is an abundant and frequent species. As there is
no measurable evidence of threats to the species, it
has been categorised as Least
Concern (LC). The regional assessment
category was not changed, as there is no information
on this species in the bordering countries (IUCN 2022).
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