Dark Volcano sponge-Pseudaxinella Zeai
The dark volcano sponge has the same digestive system as every sponge. Sponge cannot chase after their prey. Sponges are filled with pores, and canals so water can pass through. Sponge attract fish, and other small marine animals and trap them within their pores and canals and start to digest them. Once inside the sponge, they store their prey inside a large vacuole. They then start to slowly crush their prey with their muscles, and absorb the waste through their pores. The leftovers of the dead prey are released through a valve called a water valve, where the food is just released into the ocean.