noun
- small aquatic worms of the family Tubificidae that live in sediment and are commonly used as fish food
Usage: biological term
Examples
- The aquarium store sells frozen tubificids as a protein-rich food for tropical fish.
- Tubificids are often found in the muddy bottom of ponds and streams.
- Many fish breeders prefer tubificids over other live foods because of their high nutritional value.
- The presence of tubificids in the sediment indicates good water quality.
- Researchers collected tubificids from the lake bottom to study their role in the ecosystem.
- Pet stores commonly stock tubificids in their frozen fish food section.