Common name: Unicorn Worm

General Information

The Unicorn Worm, scientifically known as Glycera unicornis, is a fascinating marine polychaete worm known for its unique appearance and intriguing behavior. These worms are often sought after by marine enthusiasts for their role in the ecosystem and their striking features. With a long, slender body and a characteristic proboscis that resembles a unicorn's horn, they are truly a sight to behold.

While not commonly kept in home aquariums, they play an important role in the natural marine environment. Their burrowing activity helps aerate the substrate, contributing to the health of the benthic ecosystem. They are also a food source for various fish species, making them an integral part of the marine food web.

Care

Due to their natural habitat preferences, Unicorn Worms are not typically kept as pets in home aquariums. However, if one were to attempt it, creating an environment that mimics their natural sandy and muddy substrates would be essential. They require a stable marine environment with plenty of substrate to burrow into.

Diet and Feeding

Unicorn Worms are carnivorous, feeding primarily on small invertebrates and detritus found within the substrate. In a controlled environment, they would require a diet that mimics their natural prey, potentially including small bits of seafood or specialized marine worm diets.

Behavior and Compatibility

Unicorn Worms are solitary creatures and are not known for being particularly aggressive. However, due to their burrowing nature, they may disrupt the substrate in a tank, which could be problematic for other bottom-dwelling species. They are not typically compatible with delicate invertebrates or corals that require stable substrate conditions.

Health and Common Issues

Maintaining a stable environment with appropriate substrate is key to the health of Unicorn Worms. They are sensitive to changes in water quality and substrate composition. Ensuring a clean, well-maintained tank with appropriate salinity and temperature is essential.

Habitat

Glycera unicornis is naturally found in sandy and muddy substrates in shallow marine environments. They are distributed across various coastal regions, where they burrow into the substrate, playing a critical role in the benthic ecosystem.