Mystery Worm...???

[krissyfish20]

Haha I can't even imagine! My little mantis shrimp friend here is kinda creepy looking too, but alas I'm now starting to think he's rather cute. Creepy to cute...?? I dunno. But seriously, it's just wierd to see a whole bunch of little random tentacles sticking out of a hole reaching at everything. It took me by suprise the first time I noticed it. I've heard that spaghetti worms are good for a tank, but can anyone tell me why exactly??