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Copepods
Class: Copepoda
Order: Podocopida
These small, usually 1mm or less, white or transparent crustaceans or "bugs" make up 90% or better of the zooplankton in the oceans. These are highly beneficial creatures that feed on detritus and plant matter in the aquarium, for instance microalgae. They are usually seen on the side panels and on the sand bed. They are considered an excellent live food source for small fish such as wrasses, damselfish and small angelfish. Since copepods feed on detritus and microalgae, they are somewhat helpful in keeping unwanted algae blooms in check. Their appearance in your tank means that you have a healthy system. They can often be seen at night with the aid of a flashlight.
Adrienne Stanton 10/15/2003
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