HELP! Tube like structures are?

[RobBaglieri]

does anyone know what these tube like structures are?

 

[RobBaglieri]

does anyone know what these tube like structures are?

More pics

 

[RobBaglieri]

One more puc

 

[frisbee]

Some sort of sponge would be my guess. In most cases these are harmless, but there are certain varieties that can smother corals if conditions are right. Definitely keep your eye on them. GL.

 

[RobBaglieri]

Some sort of sponge would be my guess. In most cases these are harmless, but there are certain varieties that can smother corals if conditions are right. Definitely keep your eye on them. GL.

Thanks. I'll get out the weed wackier.

 

[nanoreefing4fun]

+1 on the sponge guess... most are harmless