what is this?

[Mrthundermaker]

added a facia from Austin aqua farms a few months back. This hair like stuff is accumulating on the bottom of frag and surrounding area. Any ideas?

 

[DraggingTail]

Looks like GHA that is not getting much light. But hard to tell. Do you have a better camera?

 

[Mrthundermaker]

Looks like GHA that is not getting much light. But hard to tell. Do you have a better camera?

Also, any idea what that yellowish ball is...? There was a small feature duster

 

[Sgolden]

The fuzzy stuff looks like algae. The white looks like sponge. Sponge is good.