This picture is blurry because I kicked up some sand before I took the picture.  The Lionfish is brown and yellow, and the colorful spines are extremely poisonous.  I first saw the small one and was about to take the picture until I looked to my right and the big one (possibly the mother?) came over.  For all you Simpsons Fans - this is the fish that Homer ate when he went to the Japanese restaurant and got poisoned from!