Common name: Yellow tube sponge
General information
The Yellow Tube Sponge, Aplysina fistularis, is a striking and vibrant sponge species commonly found in the Caribbean Sea. This sponge is known for its long, tube-like structures that can grow in clusters, creating an intricate network that adds both visual appeal and biological diversity to the reef environment. The bright yellow to orange coloration of Aplysina fistularis is not only beautiful but also serves as a warning to potential predators, as the sponge contains toxic compounds that can deter predation.
Details
- Recommended minimum tank volume
- 100 liter (26 gallons)
- Salinity
- S.G. 1.023 to 1.025
- Temperature
- 24 to 28 °C (75 to 82 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 50 cm (1′8″)
- Care level
- Moderate to easy Needs good water flow
- Diet
- Planktivore Filters water for plankton
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumSpongesPorifera
- ClassDemospongesDemospongiae
- OrderSponge Order VerongiidaVerongiida
- FamilyVerongid spongesAplysinidae
- GenusAplysina SpongesAplysina
- SpeciesYellow tube spongeAplysina fistularis (Pallas, 1766)
- SynonymsAplysina aggregata Topsent, 1932Aplysina fistularis aggregata Topsent, 1932Spongia fistularis Pallas, 1766Spongia tubaeformis Lamarck, 1814Verongia aggregata Topsent, 1931Verongia fistularis (Pallas, 1766)Verongia fistularis applicata D. & M.
Care
In the aquarium, Aplysina fistularis requires moderate care. It thrives in well-established systems with stable water conditions and strong water flow, which is essential for delivering nutrients and removing waste products. This sponge is photosynthetic and also absorbs dissolved organic matter from the water column. It is important to maintain high water quality, as sponges are sensitive to elevated levels of nitrates and phosphates. Supplemental feeding with phytoplankton or other fine particulate foods can benefit its growth and health.
Reproduction
Reproduction in Aplysina fistularis is both sexual and asexual. Sexual reproduction occurs through the release of gametes into the water column, where fertilization takes place. Asexual reproduction happens through budding, where new sponges grow from the parent organism. In the aquarium, asexual reproduction is more commonly observed, and hobbyists may notice small buds forming on the surface of the sponge.
Habitat
Yellow Tube Sponge is typically found in shallow to moderately deep waters, often attached to hard substrates such as rocks or coral rubble. They are prevalent in reef environments where they contribute to the structural complexity and biodiversity of the ecosystem. In the wild, they can be found at depths ranging from the shallows down to about 30 meters (100 feet).
Geographical distribution includes the Caribbean Sea, the Bahamas, and the Gulf of Mexico. They are often seen in areas with clear, warm waters that provide the necessary light for their symbiotic algae to photosynthesize.