Finger Lickin' Good, Dallas World Aquarium
I wish I could recall the name of this creature at the Dallas World Aquarium not only for its fantastic coloring but for the way it fed. The reddish protrubance in the center of the purple is actually an "arm" stuck in its "mouth." Once by one the creature would stick one of its tendrils in its mouth and "lick its fingers" clean of particulates.
Taken with a GX1 and 20mm f/1.7.