Bubbles in the DSB?

[fergieturk]

Okay, I know I read this somewhere, but I forgot. I have hundreds of bubbles in the DSB (4 inches) against the glass (I'm sure they are all over, but I can only see what's touching the glass). Everytime some thing walks across the sand lots of bubbles rise up.
What are these bubbles? Correct me if I'm wrong, but I think it's a good sign.
I am getting A LOT more bubbles since I added 2 Detrivore kits from Inland Aquatics. Does this mean those creatures are working or that the tank is just getting more stable?

 

[michealprater]

This means your DSB is working. Congrats! They are nitrogen gas I believe.

 

[reefrunner69]

Mike is right, the DSB is beginning to remove nitrate and produce nitrogen gas!! Very good sign

 

[jellyfish915]

I had the same thing....I also heard it was a good sign.