Slate Pencil Urchin On Lobe Coral

These urchin are a photographer's delight, with the red that won't stop. Here with pink algae on the lobe coral, how could I resist this image?

Exposure Date: 2011:03:06 10:46:45;

ImageDescription: Copyright 2011 Jane GnassMarine invertebrates (absence of backbone or spinal column) CU: “Red Slate Pencil Urchin & Lobe Coral (green) with Pink Algae" Snorkeling at Keawakapu Beach reef, Pacific Ocean, Kihei, Island of / County of Maui, Hawaiian Islands;

Make: Panasonic;

Model: DMC-TS2;

ExposureTime: 1/320 s;

FNumber: f/3;

ISOSpeedRatings: 80;

ExposureProgram: Normal program;

ExposureBiasValue: 4294967213/50;

MeteringMode: Pattern;

Flash: Flash did not fire, compulsory flash mode;

FocalLength: 4 mm;

FocalLengthIn35mmFilm: 28 mm;

Software: iPhoto 9.6;