The first image is an an adult
and the second image a 6cm juvenile of the undescribed
Spring Water Bristlenose Pleco (Ancistrus
sp. Rio Fomoso). Habitat: This species
is present in all the clearwater spring rivers which
run into the Rio Formoso, but I never found them in
the main river (Petersen, P.). Sexual Differences:
Typical Ancistrus shape with both sexes sporting
bristles to the head area with the male having the
larger and more impressive tentacles. Aquarium
Care: The Ancistrus genera make
good community fish where they do not grow too big
for the aquarium. Some species have different requirements
in the aquarium so best to read up on the species
you have whereas if they need higher oxygen requirements
or not, or if they prefer cooler waters if they originate
from the southern parts of South America against the
species from further up north. Diet:
Mainly vegetarian with a liking for algae but as this
will be in short supply in a tank set-up can be fed
on soft veg such as cucumber, courgette (zucchini),
raw potato plus loricaria tablets. Will also eat worm
food but its main diet would have to be vegetarian.
Reproduction: Lay their eggs in caves
as a cluster and the first signs of the breeding process
is a few tiny fry darting around the community tank.
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