or Sea Jellies are made up mostly of water. There are over 200 species
within just the class
of scyphozoans, the most popular
being the saucer shaped Moon Jelly, Aurelia aurita, and all are
marine free-swimming medusa.
A jellyfish's body is made up of two
layers, in between is a jellylike substance. Jellyfish posses
no distinct head, digestive or structural organs, and all possess Cnidae, which
are specially modified stinging cells
also called nematocyst. Douse stings with vinegar and apply ice for pain.
IMMEDIATE medical attention may be required for severe reactions.
Jellyfish feed on small plankton animals that they capture within their
tentacles. Freshly hatched and enriched brine shrimp, Artemia, has been
the substitute for plankton.
The midwater, or mesopelagic zone,
located between the ocean's photosynthetic surface and the sea's deep dark
bethnic layer, only
for one quarter of the entire ocean and yet it contains the majority of the ocean's
The midwater region is where
sunlight's reach is too weak for photosynthetic organisms. The only
light found here is produced by bioluminescence from the living inhabitants.
Bioluminescence is a frequent characteristic
of midwater animals.
A plankton Kreisel and jellyfish
tank are uniquely designed. Water flow is introduce in a method called
laminar flow. This creates a gentle flow that keeps the jellyfish in suspension.
This streamline flow also helps to separate debris in a manner as to not draw
the jellies into the filter system.
Midwater Systems has
developed a custom acrylic
jellyfish tank, called the Jelliquarium, and is working on holding systems used to keep
these midwater collections and gelatinous organisms in
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Captive Raise Moon Jellyfish
in Home Aquariums ?
Jelly nor Fish