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"To be carried or transported by chance or unintentionally" - such is Webster's definition of hitchhiking. In this second of a series of ReefSlides, we feature some common aquarium inhabitants that freeload their way into our aquariums via live rock, corals or live sand. Often these uninvited guests are harmless and benign, or even beneficial, yet on some occasions they can wreck havoc on the aquarium's existing inhabitants, as is the case with "red bugs," Tegastes acroporanus, on Acropora. Some of these organisms are so small, the aquarist may not notice their existence until a thorough, close inspection is performed. Even after a close inspection, quite a few plants or organisms can escape initial detection. Click here to visit Hitchhikers - Part I. To learn more about specific hitchhikers, follow any of the links provided below:

Nematodes Sponges Tunicates Vermetid snails Grazing snails - Link 1, Link 2 Whelks Mysid shrimp Crabs Mantis shrimp Bubble algae Halimeda algae

Foraminiferans Feather duster worms Fireworms Bristle worms "Peanut" worms Nemertean worms Spaghetti & Hair worms Sea spiders Amphipods "Pods" Copepods Isopods

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