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     An
aspirator is a type of steam injector specifically the ejector- jet pump, which
manufactures space devoid of matter or vacuum through Venturi effect, which is
the reduction in fluid pressure. Aspirator is an apparatus for manufacturing
suction or progressing or gathering materials by suction.  Aspirator
filters the water to become clean and clear again. An aspirator also provides
more oxygen which not totally given by an aquarium without aspirator. An
aspirator also absorbs dirt in the aquarium. It also circulates water and has
oxygenator used for powering under gravel filters, wave makers, sponge filters,
and for water pumping. Usually an aspirator has AC of 220- 240 Voltage and
50/60 Hertz with a power of 15Watts and has F. Max that is 650 Liters per hour.
We all know that every aspirator is completely submersible motor.  An aspirator works all throughout the day to
keep the aquarium clean. This is how an aspirator works. First, the fluid runs
through a pipe that first tapers and subsequently expands in cross- sectional
area. The fluid pressure lessens cause by the pipe tapers. The fluid velocity
must increase to preserve mass continuity. Where the pipe tapers, space devoid
of matter is drawn due to Venturi effect.

      Carassius auratus is a kind of
freshwater fish came from the family Cyprinidae of order Cypriniformes which is
the ray- finned fish. Carassius auratus is only a small member of the
carp family. Carp are different species of oily freshwater fish.  Carp classified as a very large group of fish
native to Europe and Asia. It was all began in ancient China; various species
of carp have been procreated and cultivated as food fish for a thousand of
years. Usually, gray or silver organism have propensity to produce color range
from red to yellow as their scales. A Carassius auratus is categorize as
a coldwater fish. They can live in unheated aquaria at a temperature comfortable
or humans. However, rapid changes in temperature can cause them to death. Carassius
auratus like to live in water that is 50 F to 76 F and some of them do live
in wild. In wild, they live in ponds, lakes, and slow moving water that is a
benefit for them to survive. In wild, Carassius auratus usually eat
plants and insects that can fit their whole mouth to swallow. These kind of
fishes usually last up to 40 years if you keep them in wild freely. Carassius
auratus is one of the most popular aquarium fish in the world. It is
popular due to its characteristics. In an aquarium, Carassius auratus
can intake these foods flakes, live food, pellets, vegetables and fruits. It
cannot live long in an ordinary bowl due to water turns toxic really fast.
Toxic water contains some poisonous material which probably not capable to
them, and can lead them to death. Temperature around 100′ Fahrenheit and
freezing winter ice. Thus they can’t last on it. Carassius auratus has
different kinds of breeds, which developed several years ago. Breeds of Carassius
auratus greatly differ from color amalgamation, size, body appearance, up
to fin arrangement. Here are some of the breeds of Carassius auratus.
Shubunkins are Japanese origin. Black Telescopes are the fishes colored in
black. This breed of Carassius auratus has bubble form of checks it is
called the Bubbly Eye. An incredible fact about Carassius auratus is
that, they have an organ that gives ability to sense pressure changes in the
water like vibration and currents. They can feel if there is something wrong
with their environment. It was called Lateral line, which is a row of tiny dots
down on each side of the fish Carassius auratus. Lateral line or
lateralis system is a system of tactile sense organs. It is distinctive marine
vertebrates from cyclostomes fishes to amphibians, which serve to detect any
motion occurring in their environment or even in their aquarium. It was formed
by a series of mechanoreceptors called neumorast ordered in an interconnected
grid along the head and body. 

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