Common name: Axinyssa ambrosia

General information

Axinyssa ambrosia, commonly known as the Ambrosia Sponge, is a species of sponge found in marine environments. This sponge is not as widely recognized in the reefkeeping hobby as some other species, but it can be an interesting addition to a reef aquarium due to its unique appearance and filtration capabilities. Sponges like Axinyssa ambrosia are filter feeders, playing a crucial role in the nutrient cycle by processing dissolved organic matter.

Care

Caring for Axinyssa ambrosia requires stable water conditions and low to moderate water flow. It's essential to ensure that the sponge is never exposed to air, as this can introduce air bubbles into its system, which can be fatal. Sponges should be placed in an area of the tank where they can receive a steady flow of water to filter feed. They do not require additional feeding if the tank has a sufficient amount of dissolved organic compounds.

Reproduction

Sponges like Axinyssa ambrosia reproduce both sexually and asexually. Sexual reproduction involves the release of sperm into the water column, which then fertilizes eggs in other sponges. Asexually, sponges can reproduce by budding or fragmentation, where a piece of the sponge breaks off and grows into a new individual.

Symbiosis

While Axinyssa ambrosia does not have the same type of symbiotic relationships with fish or invertebrates as some corals do, sponges often host a variety of microorganisms within their tissues. These microorganisms can include bacteria, archaea, and single-celled algae, which can contribute to the sponge's nutrition and resistance to disease.

Habitat

Axinyssa ambrosia is typically found in tropical and subtropical waters, often growing on or near coral reefs. They can be found at various depths, usually attached to hard substrates where they can effectively filter feed.