Common name: Fragile File Clam

General Information

The Fragile File Clam, known scientifically as Limaria fragilis, is a fascinating bivalve mollusk that has captured the interest of marine enthusiasts and hobbyists alike. Its delicate and translucent shell, coupled with vibrant red and white tentacles, makes it a striking addition to any marine aquarium. Unlike many other bivalves, the Fragile File Clam is known for its ability to swim by rapidly opening and closing its shells, a behavior that can be quite captivating to observe.

While not as commonly found in the aquarium trade as other marine species, the Fragile File Clam is appreciated for its unique appearance and behavior. It plays a role in the natural ecosystem by filtering water and contributing to the biodiversity of reef environments.

Care

Keeping a Fragile File Clam requires some attention to detail, as they thrive in well-established reef aquariums. They need stable water parameters and a mature tank with plenty of live rock for hiding and attachment. As filter feeders, they benefit from a tank that is rich in microfauna and phytoplankton.

Ensuring a gentle water flow and providing a varied diet of phytoplankton and other marine plankton is essential for their health. They are sensitive to changes in water quality, so regular monitoring and maintenance are crucial.

Diet and Feeding

In the wild, Fragile File Clams feed on plankton and other small organic particles. In captivity, they should be provided with a diet that includes phytoplankton and marine snow. Feeding should be done several times a week, ensuring that the food particles are small enough for the clam to filter efficiently.

Behavior and Compatibility

The Fragile File Clam is generally peaceful and can coexist with a variety of reef-safe fish and invertebrates. They are not aggressive and do not pose a threat to other tank inhabitants. However, they should not be kept with species that may nip at their delicate tentacles or disturb their substrate.

Health and Common Issues

The Fragile File Clam can live for several years in captivity if provided with proper care. Selecting a healthy specimen is crucial; look for clams with intact shells and vibrant tentacles. They are susceptible to poor water quality and require a stable environment to thrive.

Common issues include sensitivity to changes in water parameters and potential predation by fish or invertebrates that may find their tentacles appealing. Regular water changes and careful selection of tank mates can help mitigate these risks.

Habitat

Limaria fragilis is typically found in the shallow waters of the Atlantic Ocean, particularly around the coasts of Europe and the Mediterranean Sea. They inhabit rocky substrates and crevices where they can anchor themselves and filter feed in the nutrient-rich waters.