quick question

[atomicbiscut]

what exactly is my kole tang picking off my LR and glass?

ive had the tang for about a year now and is fat and healthy. always made me wonder what he was picking at.

 

[MT79]

Most likley small bits of algae just starting to pop out of the rock, etc. I've never noticed my tang pick at LR fauna such as copepods, amphipods, etc, but I guess that's possible as well. HTH