Dragon Fire Sponge. Size: 4"+.
Live Red Sea Sponges for sale for reef tank aquariums.
This sponge makes the best center piece for your saltwater aquarium.
Will rival and beat the colors and texture of any coral and they don't need any special lighting to show their true color as you see in these pics.
Non photosynthetic sea sponges are easy to keep and require some water flow and some live plankton dosing once per week.