Original: Candiru ( English and Portuguese ) or candirú ( Spanish ) , also known as canero or toothpick fish , are a number of genera of parasitic freshwater catfish in the family Trichomycteridae ; all are native to the Amazon River .
Simplified: Candiru ( candirú ( Spanish , also known as canero or toothpick fish ) are parasitic freshwater catfish and a member of the Trichomycteridae family .