Big sponge, Foggy Reef, Saspotato

Giant Barrel Sponge (Xestospongia muta) Coral Reef Island

Reef sponge hi-res stock photography and images - Page 17 - Alamy

Reef sponge hi-res stock photography and images - Page 17 - Alamy

Stunning Sponges of BIOT (KSLOF)Living Oceans Foundation

Marine biology: Watch first video of a possible rare sponge reef found near California

Reef sponge hi-res stock photography and images - Page 17 - Alamy

Is this stuff a White Sponge? - Reef Central Online Community

Reef sponge hi-res stock photography and images - Page 17 - Alamy

Real Monstrosities: Sponge This is really easy to understand!