ive got some tubes growing in my tank in large masses there clear and they have nothing inside them and when you touch them they are soft. They almost look like spider webs i tried to get a picture but i cant get a good one. i also have tentacles coming out of my sand that are lime green with black dots up them i think its a type of spaghetti worm but im not sure. then i have little things that look like feather dusters but there is no tube to them and they never suck into anything and there clear. lastly those little starfish that it seems like every reef tank at my fish stores has and now i have them to...are they reef safe? the guy at the fish store said he has never seen them attached to any of his coral but i just saw one on my zoanthid
