Common name: elephant ear sponge

General information

The Agaricia Sponge, scientifically known as Spongia agaricina, is a species of marine sponge found in various reef environments. This sponge is recognized for its bowl-like shape and brown to olive-green coloration, which allows it to blend seamlessly with its surroundings. Sponges like Spongia agaricina are fascinating organisms that belong to the phylum Porifera, which are among the simplest multicellular organisms on Earth. They are filter feeders, drawing in water through their pores to extract nutrients and oxygen.

Care

In the home aquarium, Spongia agaricina requires a moderate to strong water flow to mimic its natural environment and facilitate its filter-feeding habits. It is essential to maintain high water quality with low levels of nitrates and phosphates to prevent algae overgrowth on the sponge's surface. Sponges are sensitive to changes in water conditions, so acclimation to the aquarium should be done slowly and carefully.

Reproduction

Reproduction in Spongia agaricina can occur both sexually and asexually. Sexual reproduction involves the release of sperm into the water column, which then fertilizes eggs in other sponges. Asexually, this sponge can reproduce through budding, where a part of the sponge breaks off and grows into a new individual.

Habitat

Spongia agaricina is typically found in the Caribbean Sea and adjacent Atlantic waters. It prefers shallow to moderately deep reef environments where it can attach to hard substrates. The depth range for this species is usually from the intertidal zone down to about 40 meters.