Asking for a friend

[Digimes]

Friend sent me some pictures of tiny inhabitant she recently noticed. Ideas??

 

[blaxsun]

Pineapple sponge - beneficial filter feeders (sign of a healthy reef).

 

[Digimes]

!! Thanks !!

 

[Shawnman]

Pineapple sponge - beneficial filter feeders (sign of a healthy reef

Agreed

 

[PeterEde]

Will disappear in time.
My weir was full of them once. Then all gone