Tricolor Sea Slug - Chromodoris bullocki
It is called a Chromodoris bullocki. It has a white stripe at the edge of its mantle with the center being pinkish/purple. The gills and tentacles are orange/yellow. ... The gills and tentacles are orange. It looks much like the first, except for the different colorations.
Western Central Pacific: Indonesia and Fiji.
Size approx 1/2- 1 inch
COLORS CAN VARY!!!