Description

Also known as Marine Sponge, Pacific Sponge, Siliceous Sponge, Tropical Marine Sponge.

Found on walls and drop-off's, of coral and rocky reefs. This is both spongy and sticky to the touch.
They feed on plankton.
Length - 17cm
Depth - 10-20m
Widespread Indo-Pacific

Sponges come in a range of sizes from minuscule encrusting species under rocks to massive sponges which can be up to one and half metres high.
They are able to filter many litres of sea water every few seconds.
Sponges can exude highly toxic chemicals and so have very few predators apart from nudibranchs, sea stars, sea urchins and umbrella shell.
Their colour can vary if growing in the light or when growing in the shade. (edit) Ref: x