Common name: Halisarca

Halisarca is a genus of sponges within the family Halisarcidae, known for their unique cellular structure and lack of a skeleton. These sponges are characterized by their soft, gelatinous bodies and are often found in a variety of marine environments. They are filter feeders, playing a role in nutrient cycling within their ecosystems. In the reef aquarium, Halisarca can be an interesting addition due to their non-competitive nature and ability to coexist with a wide range of other marine organisms.

1. 
   Common name: Blue Sponge

   Scientific name: Halisarca caerulea