New Tank

[windcoast reefs]

Hey everyone,
Started up my first saltwater reef tank in late september, and I am just starting to get some frags in the tank. But lately after I put some more powerful power heads in I noticed that there is tons of little bubbles. Is this normal for a small tank or is it something I should be looking into more before I introduce anything. All of my snails, crabs and polyps seem to be doing fine and my levels are fine.


Thanks for any help!