River worms

Thanh Nien News

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Owning a fish tank has become a trend in Ho Chi Minh City and poor migrants have thus adopted the job of catching tubifex, the reddish worms that inhabit lakes and rivers, to sell as fish feed. They once used just nets but have been resorting to machines to double their catches recently. Photo courtesy of Saigon Tiep Thi
 

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