The Stone Fish is a mottled brown-greenish in colour (which gives them camouflage) with many venomous spines along its back.
The stonefish lives primarily above the tropic of Capricorn. Its main habitat is on coral reefs, near and about rocks, or can be found dormant in the mud or sand.
It feeds on small fish and shrimps.
The sting causes excruciating pain and a great deal of swelling rapidly develops causing death to tissues. The severity of the symptoms depends on the depth of penetration and the number of spines penetrated. The symptoms of the venom are muscle weakness, temporary paralysis and shock, which may result in death if not treated.