from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various small slender reddish freshwater worms of the genus Tubifex, often used as food for tropical aquarium fish.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any member of the genus Tubifex of tubificid annelids.


New Latin Tubifex, genus name : Latin tubus, tube + Latin -fex, maker.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Speaking about Al, my fish, Spaghetti Pizza is having fun eating tubifex worms.

    literature-y characters

  • Rates of whirling disease infection are related to water temperature and to the abundance of the intermediate host, a thread-like worm, Tubifex tubifex.

    Trout and Salmon of North America

  • As they grow, you can probably feed them live tubifex worms or red worms which are also sold at most aquarium stores.

    Comments for What's That Bug?

  • The parasite requires two hosts, tubifex worms and trout, and two forms of spores to complete its life cycle.

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  • When the fish dies, tubifex worms consume fragments, ingesting spores and completing the life cycle.

    Boulder Daily Camera Most Viewed

  • It looked like they could be tubifex worms, but I haven't put any live tubifex worms in the tank for a couple years!

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  • Are you sure the worms you found are tubifex worms and not some sort of parasite?

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