GREAT VASESPONGE (Xestospongia testudinaria)
Length: to 70 cm
This species often hosts a variety of other organisms like crabs, shrimps, worms and fishes.
They use the sponge to gain access to plankton-rich currents passing above.
CHRISTMAS TREE WORM (Spirobranchus giganteus)
Height: to 3 cm
Because of its bright colors, this worm is very popular with divers. Settles in big colonies on hard corals of the species Porites.
This species is ultra sensitive to light and pressure changes. When disturbed they are quickly withdrawn into the tube.