Only seeing these on my hammers

[thatone08]

White curly thing that looks like sand. However my sand is finer then this.

 

[andiesreef]

could you get a better picture? does it move? when did it appear?

 

[thatone08]

Doesn’t seem to move by itself but will with the flow. meaning it’s not hard like a skeleton, I noticed it a few days ago when I moved the frag to vacuum the sand.

 

[andiesreef]

honestly i don't have a clue . maybe a small sponge or something