JellyFish Facts

Kreisel Aquarium

Kreisel Aquarium picture

Kreisel Aquarium

Jellyfish are amongst the most delicate creatures that inhabit the waters across the world. Only 5% of the body of the jellyfish is made of solid organic matter. They are simple invertebrates with no brain and no specialized systems for bodily processes like digestion, circulation, etc. Jellyfish only have a rudimentary nervous system, and the nerve receptacles themselves sense and react to external stimuli like light, odor, pressure, etc.

Additionally, jellyfish depend entirely on either the winds or the tides and currents of the ocean for their horizontal movement. They are delicate enough to be drifted around on the surface and even the depths of the waters. However, they have tentacles with venomous stings that help them capture their food while drifting in water. They are, however, capable to vertical motion. They are able to tell up from down by sensing the sunlight that comes down from the surface of the water and they are able to force the water out from the underside of their bodies to push themselves upwards.

Care of creatures as delicate as these and with such specific needs were originally only entrusted to public aquariums and scientific communities. A jellyfish also needs a special tank. In a regular rectangular fish tank, a jellyfish is likely to hurt itself or get stuck. However, only recently, with the development of the Kreisel tank, it has become possible for hobbyists to keep jellyfish. A Kreisel tank is able to replicate the currents of the ocean that are required to keep the jellyfish suspended in water without disturbing its equilibrium and is circular in shape to avoid the hazards of a rectangular fish tank.

A Kreisel aquarium is specially designed with a separate inlet and outlet for water, unlike regular fish tanks. The water follows a gentle tumbling motion that keeps the jellyfish suspended. The motion of the water resembles that of a tumble dry washing machine, as opposed to the hairdryer motion that is common in regular fish tanks. The outlet of the water is covered with a specially designed screen and the water movement is also designed to ensure that the jellyfish does not get sucked out in the water outlet.

Apart from the tank design, the filtration system of a Kreisel aquarium also needs to help replicate the natural environs of the jellyfish while providing filtration of materials hazardous to the jellyfish. A jellyfish tank requires a filtration system similar to that of coral reef aquarium. It should be able to do complete surface skimming, mechanical and chemical filtration, and should also contain an efficient biological filter. Most experts opine that incorporating a protein skimmer can be very useful too.

The temperature of the water is also important in a Kreisel aquarium. The natural water temperature at which jellyfish thrive is about 55 to 65 degrees. This means that you will be required to use a refrigeration unit or a chiller with the Kreisel aquarium to provide the jellyfish an environment as close to its natural habitat as possible.

Jellyfish Art is the leader in supplying live jellyfish and their specialized aquariums and products, click here to learn more about Jellyfish Art.

Learn more about Jellyfish, different Jellyfish Species, general Jellyfish Information, Jellyfish Pets and Jellyfish Safety




Written by and Sudarsana Sinha.

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