Looking inside the sponge you can see a lot of interesting things. Especially if it's night. Almost every one of them is inhabited. Shrimp, crustaceans, tiny fish and many who still find shelter in sponges. The most difficult thing is not to disturb this small and cozy world. Any careless intervention leads to the fact that all tenants instantly hide.
In Russian mythology, there is even a fairy tale on this subject. It's called Teremok (Mansion). When many different animals began to live in one small house in the forest. And then the bear. He tried to get inside to them and spoiled everything. He did not want anything bad, but the house was too small for him. So it's very important for the photographer not to be like that bear from the fairy tale)
Bonaire Island, Caribbean Sea.