kid on the block, so to speak, is this small pretty
Ancistrus from the Rio Claro in the Mato
Grosso area on the South Western tip of Brazil. You
will find this species in the Aqualog all L-Numbers
as LDA08 and was first imported into Germany in 1993
and subsequently was given this moniker by the German
publication "Das Aquarium". The holotype
resides in the Berlin Zoological Museum.
claro - female
The common name
of the "Gold Marble Bristlenose Catfish"
is I think a bit misleading as if you have ever kept
this species they change colour on a regular basis,
whether they are resting on the substrate, on a piece
of wood or rockwork. They seem to take their colouration
from their surroundings and a better common name would
be " The Chameleon Bristlenose Catfish"
earlier, they reside in the Rio Claro and the type
locality mentions "above the bridge in the direction
of Chappada dos Guimaraes", this is not not far
from the town of Cuiaba . It has been collected in
the Coxipo River and other western tributaries and
the Copixo is the area that is stated in the type
locality. Its habitats consist of fast flowing waters
with little vegetation among and under rocks.
of its habitat gives us an insight on how best to
keep this species, providing plenty of water movement
and caves/pipes with plant life only as a personal
addition to the aquarium.
claro - in the aquarium
above picture shows a young pair with the male to
the front with the marble markings to the body and
head area. The female is darker and has more of a
spotted pattern and has small bristles compared to
the young male who will eventually sport the more
traditional male Ancistrus head dress of
larger and branched bristles.
This is an Ancistrus species which you will
see quite often during the day, either clamped to
the tank walls or sitting on or underneath their favourite
position of flat stonework.
Click on the thumbnails below for further images.
in in one of its favourite positions of rock clinging.
Taking on the colouration
of the flat stone.
Showing the mouth
Gold Marble Bristlenose Catfish.
Mato Grosso, in the Rio Claro and Coxipo River and
other western tributaries. (see location
Ancistrus shape with both sexes sporting
bristles to the head area with the male having the
larger and more impressive tentacles.
Base colour of brown with
gold marble reticulations in the male. The female
has a darker colouration which comprises of a more
dotted pattern. Both sexes have banding to the caudal,
dorsal and pectoral fins and a white ventral region.
Care & Compatibility
Quite an easy species to keep
as long as there is adequate aeration in the aquarium
and giving them a choice of pipes, stones or rockwork.
As per the Ancistrus
family in neutral to mildly alkaline water. Will spawn
in caves/pipes and the eggs are yellow, large, and
can number to about 40 in a good spawning.
They are mostly omnivores with
a liking for most foods. I find that they will eat
courgette(zucchini) but they are not as keen on it
as your usual bog standard Ancistrus species
are. Will eat most flake and worm foods and have a
particular fondness of algae discs.
With barbed hooks, (hooked spines). claro: From the river of
the same name in the Mato Grosso area of Brazil.
Joachim; Dr. A New
Species of Bristlemouth Catfish of the genus Ancistrus,
Kner 1854 from the Mato Grosso, Brazil (Pisces, Siluriformes,
Loricariidae) TFH. June 1999. Jinkings, Kathy. Bristlenoses, Catfish
with Character. 2000. Kingdom Books. 112p.