In natural waters in the main feeding phytoplankton, filamentous algae, benthic algae and organic matter in soil, insect larvae, water, such as earthworms.

 
  • 在自然水域中主要摄食浮游植物、丝状藻类、底栖藻类及泥中有机物质、昆虫的幼虫、水蚯蚓等。
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