ID please

[akaemu]

hi

I'm wondering what this white semi transparent thing is that is on the backside of one of my rocks. The best I can describe it is that it looks like part of a cotton ball got wet. Not the tube worm.

 

[kchristensen8064]

I'm going to say sponge. Harmless filter feeder. They come and go.

 

[Arthacker87]

Sponge think well as do i. Yoda

 

[akaemu]

Thanks fellows