Reefrookie
Not so new anymore!
Last night I was doing my normal check of my rock work looking for new critters, and I thought I saw something like a puff of white smoke coming out of a small opening in my rock. Knowing that this was impossible, I continued to watch, and a few minutes later, it did it again. I could not see anything in the hole.
Any ideas on what it could be?
Any ideas on what it could be?