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Also known as Marine Sponges, Siliceous Sponges, Chocolate Sponge, Chocolate Volcano Sponge, Calcifying Sponge and Boring Sponge. Found on coral and rocky reef tops burrowing into the limestone.. more
Also known as Marine Sponges and Siliceous Sponges. Found on coral and rocky reefs with good current flow. Thick and lobe encrusted. Varies in colour from shades of yellow to.. more