quik question....

[Micro_suds]

what are the small pockets in my dsb that appear to be trapped air ? they have been there for a while now and i was just curious as to what they are and what purpose the serve?

thanx,

micro

 

[reefrunner69]

They are nitrogen gas, it is the by-product of denitrification. The gas bubbles slowly leave the system into the atmosphere It is a sign that your DSB is doing what you want it to.