A Gobi and his Sponge, a Sponge and its Gobui

Here's a Gobie of the tiny size we're most used to (as contrasted to that of his wolf Eel cousin) on top of similarly petit (10") white sponge. Unlike the big barrel sponges we dove among at 130 feet in Cuba, these little sponges grow in fairly shallow. Of course they still need need significant currents.