spaghetti Worms?

[Buckeye1]

I am noticing a large number of little yellow worms in my 75gallon reef that I think are known as "spaghetti worms." They are known Cirratulids according to the following hitchhikers page:

http://home2.pacific.net.ph/~sweetyummy42/hitchworms.html


My question is are these problematic???