Common name: Axinella cannabina

General information

Axinella cannabina, commonly known as the Esparto Sponge or Yellow Sponge, is a species of demosponge found in the Mediterranean Sea. It is characterized by its yellow to orange color and its tree-like, branching structure which provides a complex habitat for a variety of marine organisms.

This sponge is known for its rough texture, which is reminiscent of the esparto grass used in traditional basket weaving, hence its common name. It is a filter feeder, relying on the flow of water through its body to capture food particles.

Care

In the aquarium, Axinella cannabina requires a moderate to high flow of water to mimic its natural environment and facilitate its feeding process. It is important to maintain good water quality with low levels of nitrates and phosphates to prevent algae overgrowth on the sponge's surface.

Sponges are generally sensitive to changes in water parameters, so gradual acclimation to the aquarium conditions is crucial. They should never be exposed to air, as trapped air bubbles can be fatal.

Reproduction

Axinella cannabina reproduces both sexually and asexually. Sexual reproduction involves the release of sperm into the water column, which then fertilizes eggs in nearby sponges. Asexual reproduction occurs through budding or fragmentation, allowing the sponge to spread and colonize new areas.

Symbiosis

The complex structure of Axinella cannabina provides refuge and living space for a variety of small invertebrates and microorganisms. This symbiotic relationship enhances biodiversity within the reef aquarium and contributes to a balanced ecosystem.

Habitat

The natural habitat of Axinella cannabina is the rocky substrates of the Mediterranean Sea, typically at depths ranging from 10 to 40 meters. It thrives in areas with strong currents, which supply it with a continuous flow of nutrients.