How much light does my feather-duster/peacock/christmas-tree worm require?
Because it’s a “filter feeder” it does not need any light – it’s not photosynthetic. Instead it needs a constant supply of suspended organic matter which it can filetr from the water. This means you should *not* consider getting one of these animals unless you intend to feed it. See Ron’s Segmented and Vermiform article — http://www.aquarium.net/1096/1096_3.shtml — for a description of how filter feeding in worms works.
