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 (to͞o′bə-fĕks′, tyo͞o′-)
n. pl. tubifex or tu·bi·fex·es
Any of various small slender reddish freshwater worms of the genus Tubifex, often used as food for tropical aquarium fish.

[New Latin Tubifex, genus name : Latin tubus, tube + Latin -fex, maker; see dhē- in Indo-European roots.]


n, pl -fex or -fexes
(Animals) any small reddish freshwater oligochaete worm of the genus Tubifex; it characteristically lives in a tube in sand and is used as food for aquarium fish
[C19: from New Latin, from Latin tubus tube + facere to make, do]


(ˈtu bəˌfɛks, ˈtyu-)

n., pl. -fex•es, (esp. collectively) -fex.
any small bottom-dwelling annelid worm of the genus Tubifex, often used as food for aquarium fish.
[< New Latin (1816); see tube, -i-, -fex]
References in periodicals archive ?
2010; Jamshidi-Zanjani and Saeedi 2013), there are no data on the species diversity of the Oligochaeta of the region, except the single record of Tubifex tubifex by Pourang (1996).
Suitable foods that have sufficient vitamins and calcium for a terrapin include greens, fruits, pondweed and pond fish pellets, insects, blood worms, tubifex worms, raw whole fish, prawns, leafy vegetable and carrots.
Commercial grade tubificid worms consisting primarily of Tubifex spp were procured from the local ornamental fish stores time to time as per requirements.
Among Oligochaetes, the participation of Tubifex tubifex was shown to be maximum at all the stations with highest mean standing crop at St I (136.
The treatments included exposure to 7[degrees]C or 11[degrees]C with feeding of four Tubifex worms once each week (the high food groups) or once every other week (the low food groups).
Carp feed on tubifex, water fleas, mosquito larvae and other natural organisms that are usually present in the ponds.
In the Great Lakes, there are some species associations of Tubificidae characteristic of organically polluted bays and harbors: Tubifex tubifex, Peloscolex multisetosus, and several Limnodrilus species (dominated by L.
Whirling disease is caused by a parasite spread by the Tubifex worm when it is eaten by fish.
These and related species have been erroneously included into the genus Ilyodrilus Eisen, 1879 (treated also as a subgenus of the genus Tubifex Lamarck, 1816).
Answer: The suitable dietary constituents for a turtle or terrapin include greens, fruits, pondweed, pond fish pellets, insects, blood worms, tubifex worms, raw whole fish and prawns.
3 mg in weight) were mostly Tubifex spp and Branchiodrillus sp, separated from the clumped heterogeneous population and were maintained in the laboratory in plastic trays placed under running tap water.