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Coeloplana extends its nearly invisible long delicate tentacles to trap food from the passing water J. C. Delbeek

Ctenophores

Often aquarists notice what appear to be long feather-like "hairs" floating in the aquarium. The "hairs" appear to retract and elongate sporadically. They collapse into a tangled ball and then unfurl into perfect order in mere seconds. These belong to the platyctene comb-jellyfish genus Coeloplana. These odd, flattened jellyfish resemble flatworms to the untrained eye. Some species are mottled in colour while others are almost transparent. Some species live attached to the bottom or on algae, while others live in association with soft corals and sea stars. The pictured Coeloplana is the one most often encountered by aquarists and it is often imported along with Sarcophyton spp.

The COMPLETE guide to Aquariums

The COMPLETE guide to Aquariums

The word aquarium originates from the ancient Latin language, aqua meaning water and the suffix rium meaning place or building. Aquariums are beautiful and look good anywhere! Home aquariums are becoming more and more popular, it is a hobby that many people are flocking too and fish shops are on the rise. Fish are generally easy to keep although do they need quite a bit of attention. Puppies and kittens were the typical pet but now fish are becoming more and more frequent in house holds. In recent years fish shops have noticed a great increase in the rise of people wanting to purchase aquariums and fish, the boom has been great for local shops as the fish industry hasnt been such a great industry before now.

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