That white with red spot is coral, These are beautiful creatures of God and due to them underwater world appears to be like heaven
@Shipra Agrawal i believe that that is the sea anemone that the crab is clinging to as stated in the description.
so if i'm correct, this sea anemone has green tentacles and a white and red polka dot body.
The tentacles are indeed green. The red polka dot is the 'under body' ot the anemone which I just lifted to take the picture.
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