The Pleco fish, known in general as the Suckermouth Catfish
or by a more familiar local adaptation known to be as "Bandaraya",
the scientifically abbreviated Hypostomus Plecotomus would be our selected
subject of study for biomimicry approach. Brief summary upon this species is
that its omnivore and diet consist generally upon bottom feeding. Due to its
distinctive diet and the characteristic of rasping, this fish was widely used to
clean up algaes that sticks to the aquarium glass and other residing surfaces,
resulting in a self-cleaning miniature ecosystem for algae within the aquarium.
Physical characteristic
The
adopted species, plecostomus possess a mottled brown
and black color pattern exhibited on its upper body as well as its
undercarriage. Running in common with regular fish anatomy, they also
have a dorsal fin for staying upright, two pectoral fins, two pelvic fin, two
anal fins and one caudal fin for navigation/mobility purposes and to maintain a stationary stable position.
[Photo courtesy of
http://www.biologycorner.com]
Pleco, in short is able to fasten its
disc-shaped mouth, creating a low pressure region to assume a
"sucking" motion, in order to adhere and secure itself on surfaces
within the aquarium regardless of the position. This enables the Pleco to
vertically position itself upon the aquarium glass without the aid of other
forces (such as fin propelling to maintain altitude and stability) which is a
common behavior seen in fish tanks. Proceeding to the other aspects, due to its
diet pattern and habitat, the Pleco possess a highly effective defense
mechanism, which is a sophisticated armored skin to shield from predator
attacks and making it less desirable to be targeted by predators of equal size.
Besides, the Pleco also has a set of eyes situated high on the side of its head
which has the ability to control the amount of light that enters through their
eyes by altering the shape of their iris, known as the omega iris. This feature enhances the
ability of the Pleco to navigate efficiently during nocturnal period.
Diet
It is
known that that the Pleco species are omnivores and for this species
specifically, its diet generally consist of bottom feeding. The Pleco will
feed on algae grow on the aquarium glass surface and also algae grow on rocks. However, common misconception is such as the Pleco diets only depends on
the algae gathers in the tank. For a full-grown Pleco with significant size and
length, the algae in the tank would not be able to provide enough nourishment
for the Pleco. Similar with all other living organisms, insufficient food source
will lead to malnourishment and even death. In fact, as the Plecos are
categorized as omnivores, they can actually be fed with bloodworms from time to
time and other plant-based food such as romaine lettuce and parboiled zucchini. Also,
having some driftwoods in the tank will provide a needed source of fiber to the
Pleco. Occasionally, if there ever be a situation where other residing fish
died and sink to the bottom, the Pleco would seize the opportunity to feast on
the dead carcass.
Living environment
A comfortable living environment has been set to
two newly adopted Plecos with companies of small fishes that differ in species. Driftwoods and amazon sword weed have been added into the fish tank to
provide necessities for the Pleco to maintain a sufficient diet. An oxygen pump
has been installed to regulate the oxygen level within the tank and to provide
a more uniformly distributed oxygen rating throughout different altitudes of
the water level. Small pebbles are added to the bottom of the tank not just for
aesthetic purpose of the tank, but also to increase the surface area and aids
in the growth of algae in the tank. The water in the tank will be changed in a
weekly basis to ensure the water quality. Without proper care on the water
quality, the water will be contaminated by the excrement of the fishes and the
health of the living organisms inside the tank will be affected. Also, a LED
lamp was added to the tank to provide sufficient light to the amazon sword
weed.
Unique facts about Pleco
- They are nocturnal (active at night to hunt for food).
- They have a unique iris called omega iris which controls light intensity that enters their eyes.
- Disc-shaped mouth enabling the fish to secure them on smooth surface through suction.
- Calm and friendly, able to live with large variety of fishes.
- Clean the aquarium wall by consuming algae (prohibit algae growth).
- Able to grow from 12 to 24 inches in lengths.
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