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Walterworms are a type of nematode or roundworm. Walterworms are a non-parasitic variety of roundworm and presumably feed on yeast.[1]

What are they used for in fish keeping?[edit | edit source]

Walterworms make excellent food for fry (up to ¼”-½” and even adults of some species take them). They can be used instead of infusoria or baby brine shrimp as a first or second food.

How are “Walterworms” different from “Micro Worms”?[edit | edit source]

Micro Worms are slightly larger then the walters. Walterworms also live longer underwater and sink slower then Micro Worms[2]. There is also a difference in nutritional content:

  • Walter Worms: 59% protein, 18% lipids, 15% fat, 3% glycogen, 2% organic acids, and 3% nucleic acids
  • Micro Worms: 48% protein, 12% lipids, 31% fat, 7% glycogen, 1% organic acids, and 1% nucleic acids[3]

References[edit | edit source]