TR4255-D. Brown Tube Sponges (Agelas conifera) and purple Row Pore Rope Sponge (Aplysina cauliformis) proliferate along a wall at 75 feet deep, scuba diver (model released) in background. Sponges are often brightly colored and come in a wide variety of shapes. They are filter feeders, drawing seawater (containing microscopic plankton on which they feed) through their pores. Cayman Islands, Caribbean Sea.<br /> Photo Copyright &copy; Brandon Cole. All rights reserved worldwide.  www.brandoncole.com
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