BTW when I was replacing the rock I came across an interesting looking thing, reddish orange in color. At first I thought it was a molt from my fire shrimp. Then I realized it was something else. Did a bit of research and found it to be a spaghetti worm. There a few in my sand bed along with network of tubes which break off pretty easily.
Ah. no biggie those are a score as @Lionfish Lair would say.
http://www.lionfishlair.com/hitchhikers-guide/