Bubbles from my sand

[forsaken541]

I have a 90 gal glass with 60lbs of LR and about a 1.5-2 in sand bed that I seeded around 3 weeks ago with 2 lbs of sand from one of Kevins tanks at Aquatic Dreams. I have various snails and a few hermits and all are doing great motoring around cleaning. I have noticed in the last couple of days that there are bubbles releasing themselves fomr the sand bed. Is this just a normal Nitrogen bubble thing or what is going on? Thanks,
Erik

 

[mattseattle]

yup - normal thing........ just means your sand bed is doing it's job.