Help me identify this stuff???LOOK at Pic

[hermeez]

What is this stuff that looks like grapes??

 

[gatorolsen]

hopefully someone else will chime in to be more definite
could it be red bubble algae?

Gatorolsen

 

[graveyardworm]

It is a type of Botryocladia, possibly skottsbergi, or pseudodichitoma. The skottsbergi is sometimes referred to as red valonia or red bubble algae, see here.