Common name: Halichondrid sponges

Halichondriidae, commonly known as Halichondrid sponges, are a family of marine demosponges found in a variety of reef environments. They are characterized by their firm, often massive or encrusting growth forms and a skeleton made of spongin fibers and silica spicules. These sponges are important for their role in reef ecosystems, contributing to the structural complexity and serving as habitats for various small organisms. In the aquarium, they can be interesting additions due to their unique textures and shapes, but they require stable water conditions and moderate to strong water flow to thrive.

1. Common name: Axinyssa ambrosia

   Scientific name: Axinyssa ambrosia
2. 
   Common name: Boring Sponge

   Scientific name: Ciocalypta penicillus
3. Common name: Deadman's Finger sponge

   Scientific name: Halichondria bowerbanki
4. 
   Common name: Yellow Sponge

   Scientific name: Halichondria cartilaginea
5. 
   Common name: Breadcrumb Sponge

   Scientific name: Halichondria panicea
6. Common name: crumb-of-bread sponge

   Scientific name: Hymeniacidon perlevis