Common name: commercial sponge

General information

Spongia officinalis, commonly known as the Bath Sponge or Mediterranean Sponge, is a species of marine sponge found in the shallow waters of the Mediterranean Sea and the Adriatic Sea. This sponge has been harvested for centuries due to its soft, absorbent, and durable skeleton, which is used for bathing and cleaning. It is characterized by its large, irregularly rounded shape and brownish or yellowish color.

Care

In the aquarium, Spongia officinalis requires clean, well-oxygenated water with moderate to strong water flow to mimic its natural environment. It is a filter feeder, consuming microscopic plankton and organic particles suspended in the water. Regular feeding with phytoplankton or liquid invertebrate food is recommended to maintain its health. It's important to avoid placing the sponge in direct contact with bright lighting as it can cause stress and bleaching.

Reproduction

Spongia officinalis reproduces both sexually and asexually. Sexual reproduction involves the release of sperm into the water column, which then fertilizes eggs within another sponge. Asexually, it can regenerate from fragments, a process known as budding. In an aquarium setting, reproduction is less common but can occur if conditions are optimal.

Habitat

The natural habitat of Spongia officinalis is typically rocky substrates and coral reefs where it attaches itself firmly to the surface. It can be found at various depths, often ranging from shallow waters to about 100 meters deep. In the aquarium, it should be attached to live rock or a similar structure to provide stability and access to water flow.