Air bubbles underneath base rock

[spongebob1]

I just added some new base and live rock to my tank, and am in the beginning stages of my first cycle. I noticed that large (the size of a dime) air bubbles have accumulated underneath some of the base rock. Is this something I should be concerned about?
:thinking:

 

[flydan]

Hey,
I don't think it's of a major concern other than the fact that nothing will grow where the air is trapped. I would redirect a power head, or get another one, and aim it at the lr. It sounds like you need better water circulation to avoid "dead spots".
HTH,
Dan'l

 

[gregvabch]

the air pockets could be from something mechanical adding bubbles to your water, like a powerhead or the return flow from a protein skimmer.