Do these look like eggs to you?

I noticed these this morning, and it's hard to tell because they're a little farther back in the tank (couldn't get a better picture either unfortunately!), but my clownfish are paying a lot of attention to these bubble like things on my rock - they don't pop or disappear when my clowns rub their noses in them, so I don't think that they are just air bubbles.

What do you think? And if they are eggs, what should I do about them?