Genus
Common name: Chalk Sponge
Scientific name: Lamellodysidea
Lamellodysidea is a genus of sponges in the family Dysideidae, commonly known as Chalk Sponges. These sponges are characterized by their encrusting growth form and chalky texture, which is due to the high content of siliceous spicules. They are found in various colors, often blending well with their surroundings on the reef. Chalk Sponges are filter feeders, playing a role in nutrient cycling within the aquarium ecosystem. They are generally hardy and can be a unique addition to a reef tank, provided they are given adequate water flow and are not placed in direct competition with more aggressive species.