Are microbubbles normal in a new tank?

[jasonrusso]

So I just set up my new 210 tank.

http://www.reef2reef.com/threads/new-225-gallon-build.288361/

It's been up and running for about about 5 days now. The fish seem to be doing well and my water parameters are good, but I keep getting micro-bubbles which is getting frustrating.

Now, I swapped over all my rock from my 150 and added some more. I swapped over most of my sand, but added some new sand. Pretty much all my equipment was swapped over.

At first, I could see that one of the return lines was getting a venturi from the siphon break. I corrected this issue with some airline under the water line, but I am still seeing bubbles!!!

In my sump, my skimmer (which is 2 years old and swapped from the old tank) seems to be putting out a bunch of micro-bubbles. I have an Oceanic sump so I do have a bubble wall, but I still see some bubbles in the return chamber.

So, I read in a couple places that because it is a new tank with new components (returns, durso stacks, hoses, glass, etc) that micro bubbles may be normal until the components become "wet." Has anyone experienced this?

 

[reefstarter]

The bubbles are nitrogen , how many fish in there? Did you cycle the tank?

 

[jasonrusso]

There are 5 fish. The rock and sand were all swapped over from an established tank.

 

[this is me]

Any picture to show the sump configuration?
Micro bubbles will not go away with time.

 

[wpeterson]

Does your sump have a proper bubble trap baffle setup? Something like:

Is your skimmer producing massive amounts of foam/microbubbles? If so, that can be a matter of break in time or new tank situation. Even with a bubble trap, you may be putting out too many bubbles.

They're not esthetically pleasing, but harmless. If it doesn't clear up in a week I would investigate your skimmer or sump design.