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The
Rivulus.htm
are informally grouped here chiefly because mainly due to a geographic
affiliation and a loose similarity in reproductive behavior and
aquarium care (The Mangrove Rivulus being a well known exception).
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Key Genera
- Kryptolebias
- Fundulus
- Rivulus
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General Distribution
Fundulus: turquoise
Rivulus & Kryptolebias: red
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Aquarium Care & Breeding (generalized)
The genus Fundulus
occurs in temperate regions of North America, through America, the
genus Rivulus is mainly of sub-tropical & of tropical origin, so care and housing
is hard to characterize with a single generalization. Obviously the
Fundulus species native to the Great Lake and northern Mississippi
drainages can withstand cold temperatures, while some Rivulus demand
similar temperatures to those of tropical aquarium fishes. Many are
determined jumpers and will require adequate cover. Water parameters are
variable, and with such a broad sweep of species involved here,
conditions could range from "marginal quality" to demanding. |
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Feeding: As with any killifish, the addition of
live foods is beneficial if you want the fish to develop into "show
quality" specimens and achieve peak breeding condition (which will
likewise have a direct affect on your breeding success/failure).
Chopped earthworms, white-worms, grindals are all accepted, but
shouldn’t constitute the bulk of the diet. Instead; offer
terrestrial insects or aquatic larvae (bloodworms, mosquito, flies,
et.) as the larger percentage of live foods offered (note the upward
positioning of the mouth opening in these killifish)
Breeding:
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Notable species
A=widely available
U=
usually available
N=
not seen often B=suitable
for beginner
C=Hobby
Conservation targeted
Fundulus chrysotus
Fundulus diaphanus diaphanus
Fundulus dispar
Fundulus notatus
Fundulus similis
Rivulus agilae
Rivulus caudomarginatus
Rivulus christinae
Rivulus cryptocallus
Rivulus cylindraceus
Rivulus elongatus
Rivulus hartii
Rivulus holmiae
Rivulus magdalenae
Rivulus marmoratus
Rivulus taeniatus
Rivulus tenuis
Rivulus uroflammeus siegfriedi
Rivulus xiphidius
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External links & References
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