Creation Date : 23 October 2016
Name : Petrosia testudinaria
Type : Water
Attack 1 : Physical Characteristic
The tissues of the giant barrel sponge contain photosynthetic symbiotic cyanobacteria which give the sponge its color.
Attack 2 : Ecology
Serves as a habitat for various invertebrates which live on the surface or in the interior and is grazed upon by some parrotfishes. It is also a host to a diverse community of microbes, some of which are primary producers or involved in nitrification.