I have been runing a Skimmer for over a month now,and I am still getting mirco-bubbles in my tank.So,since I have 20gal.long nano-Reef Tank I only run the skimmer at night !
I used pre-cured rock.It took 30 for the water to stablize.But,during the curing process,I could not hold down the ammonia levels to a safe level,no matter how offend I change the water.Uncured Rock would be worse !