Eel OK for Live Rock?

[rocky79]

I have some small sponges and tiny featherdusters developing in my live rock (thanking you all for ID'ing the sponges for me!)

I've read the compatability guide on this site, and saw that eels are OK for reef systems but not OK for inverts. Would this stuff growing on my rocks be safe from an eel (thinking of a snowflake)???

 

[Hara]

Eels will not bother the feather dusters and sponges. Eels can be a royal pain in a reef tank, they get quite large and dislodge corals and rockwork on a fairly regular basis.