ID help: White stringlike things

andywe

New member
I tried to take a pic but the tank is too deep to get a shot.

I have stringy white threads on my back wall, just developing the past few days. They don't look friendly. Anyone have an idea?
 
Are the calcarous? If so, they are likely just small tube worms. If soft and mushy, probably a sponge.
 
+1 on the sponge. I have sponges like that in my tank.

We needs a pic for a more positive ID. :)

Brandon
 
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