[Cyprinodontiformes] Aquarium Glaser Newsletter August 28th, 2009

[cyprinodontiformes viviparos.com]

Prezados amigos,

 

A questão que aqui se coloca em relação ao “ Óscar “ ( Astronotus sp. “
Bahia Red “  ) é extremamente vulgar em relação a alguns Poeciliídeos como o
Guppy.

Já tive várias discussões amigáveis sobre a original distribuição geográfica
da espécie Poecilia reticulata… mas é óbvio que a resposta correcta só
alguns raros especialistas é que poderão dar com base numa noção ainda assim
aproximada.

 

Um abraço

 

Miguel 

 

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De: Aquarium Glaser GmbH [mailto:info  aquariumglaser.de] 
Enviada: sábado, 29 de Agosto de 2009 01:01
Para: cyprinodon  clix.pt
Assunto: [Provavel SPAM] Aquarium Glaser Newsletter August 28th, 2009

 


 
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Pseudepiplatys annulatus

 
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Currently we can offer wonderful bred Pseudepiplatys annulatus. This tiny
species originates from West Africa, the fish we have in stock were bred in
Southeast Asia. Maximum length of the male is around 3 cm, females stay even
smaller. The species is completely peaceful against all other fish and an
ideal choice for so called nano-aquaria. The males like to fight with each
other and so the tank should be well planted. P. annulatus feeds readily on
any fine dry, frozen or live fishfood.

 
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The fish thrive best in relatively dark aquaria. It is important to put dead
leaves, peat etc. on the ground. If the tank is too bright the fish stay
nervous. Not too hard water (up to 15°dGH) with a slightly acidic pH (6.2 -
6.5) is ideal, but the fish are pretty hardy and accept also less optimal
conditions. However, very clean water is absolutely necessary. Water
temperature can be between 18 and 24°C.

Text & photos: Frank Schäfer

Lexicon: Pseudepiplatys: from ancient Greek, means "False Epiplatys".
annulatus: Latin for "ringed".

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Trachycorystes trachycorystes 

 
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This bizarre species has been described scientifically already in 1840. It
is widely distributed in the whole Amazon basin. Nevertheless it becomes
only rarely imported and so it is highly demanded by fans of predatory
catfish who pay quite high prices for them. The species can attain a total
length of about 45 cm.

 
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We were able to import six specimens from Peru recently. They are 15-20 cm
long and thus only juveniles. T. trachycorystes is known to be pretty
aggessive against tankmates, may they be of their own kind or belong to
other species. Nevertheless all our six specimens huggle together in the
same pvc-tube. Definitely their desire to hide is by far greater than their
disgust against each other.

 
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These cats are quite easy to keep. They feed readily on anything of animally
origin that fits in their mouth. If it is planned to keep this catfish in a
community tank one must take care that tankmates do not end up as
catfishfood!

Lexicon: Trachycorystes: from ancient Greek, trachys meaning "rough" and
korystes meaning "one armed with a helmet".

Text & photos: Frank Schäfer 

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Astronotus sp. „Bahia Red“ 

 
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Sadly it was not possible to research if this Astronotus really was
collected in the Brazil state of Bahia. Currently no scientific reports of
the occurence of the genus in Bahia are known.  So we have to leave the
question open, if this population was brought to Bahia as a food fish or if
they do not occur there at all.
Despite all this the new „Bahia Red“ is a beautiful wild variety of oscar
which developes a lot of red coloration in the lower part of the body.
Keeping oscars is pretty easy given the fact that they need a really spacy
tank for they easily reach a length of 30 cm and even more. As long as
tankmates are not too small (then they end up as oscar food) they are not in
danger, for this species of Astronotus is really peaceful even when taking
broodcare.

Text & photo: Thomas Weidner

Lexicon: Astronotus: Ancient Greek for "with stars on the bach", refering to
the pattern of A. ocellatus.

 
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School of juveniles in our fishhouse. Photo: Frank Schäfer

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Badis "Piebald" 

 
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Currently among the specimens of Badis badis bred by commercial breeders
relatively often aberrant specimens are found. A closer look on these fishes
reveils that besides the unusual irregular black pattern the basic body
colour is a deep red. There can be no doubt that these animals are hybrids.
Quite recently only one species with three or four "subspecies" was
recognized as valid in the genus Badis. The real diversity in Badis was
completely unknown. Some breeders buy now and then wild collected specimens
to refresh the blood in their stock, although this is not necessary in fish,
as the great number of offspring usually allows to avoid defects resulting
from inbreeding. 

 
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The example of the Piebald-Badis clearly shows on the other hand that it is
very dangerous to cross fish of unknown origin. Nevertheless these hybrids
are pretty aquarium inhabitants that can be kept like all Badis. They refuse
dry food, but readily accept frozen food. The Piebald-Badis are very active
and often fight with each other. These fights are totally harmless. It is
unknown if it is possible to breed with the hybrids.

Lexicon: Badis: after the Bengal name for the species Badis badis.

Text & Photos. Frank Schäfer

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