noun
- plural of tubifex; small aquatic worms that live in tubes in mud or sediment, commonly used as fish food
Usage: biology
Examples
- The aquarium store sells frozen tubifexes as food for tropical fish.
- Tubifexes are often found in polluted water where they feed on organic matter.
- Many fish keepers prefer tubifexes over other live foods because they’re nutritious.
- The biologist collected tubifexes from the muddy bottom of the pond.
- Tubifexes can survive in low-oxygen environments where other worms cannot.
- Pet stores commonly stock tubifexes in their frozen food section.