Late at night, I saw these tiny worms darting through the water. In the six years I'd been a hobbyist, I'd never seen this occur and was fascinated. They seemed to be attracted to the light of my flashlight. You can see two worms in the picture above, next to a Nassarius snail. They are about the size of a small maggot. I was later told this is the spawning pattern of several different types of polychaete worms. Please read the discussion and view more images. Here is a 5 meg video of the event. Reef-safe.