Oto

Origin

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Full definition of oto

Noun

1. (informal, fishkeeping) An otocinclus (freshwater fish, genus ).
• 1998-01-24, LASP, Dead tetras, All the tetras in my tank (3 species - black neons, Pristellas, and red eyes) died within a 36 hour period. The corys and otos in the same tank are fine.
  There was no change in water quality, feeding habits, or water temperature. I have no idea why all the tets would die in such a short time span.

Derived terms

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