Limnodriloidinae Naidinae Phallodrilinae Pristininae (disputed) Rhyacodrilinae Telmatodrilinae Tubificinae Tubificidae Vejdovský, 1876 The Naididae (including the former family Tubificidae) are a family of clitellate oligochaete worms like the sludge worm, Tubifex tubifex.

[3] To avoid paraphyly the naidid and tubificid taxa were included in a combined family, which took the name Naididae because it has priority under International Code of Zoological Nomenclature rules as the senior synonym of Tubificidae.

A proposal to the International Commission on Zoological Nomenclature to suppress Naididae, because the "tubificids" are the more well-known group of the two, was rejected.

When their population becomes high, the worms migrate toward the surface of the water for access to higher concentrations of oxygen.

[5] Improvement of water quality, filtration, gravel cleaning, and the reduction of feeding, may be performed to bring detritus worm population back to normal.