I have had a Bak Pak 2R on my 29 gallon tank for about 4 months now. It has done a great job of skimming but there are still a few micro bubbles. About 4 days ago it just stopped producing skimmate. The only differences in the tank are I have added the small sponge in the out let area to trap the microbubbles (works ok, I am still not bubble free but less).
Also, I usually do a weekly 10% water change, but last week I skipped. I am going to try to go 2 weeks and see what happens. The tank and all the inhabitants look great.
As a side note, the thing I like best about my BakPak is the skimmer cup is a great ampiopod trap, the get stuck on the lip and once a day I pick them off and drop them in the refugium.
Also, I usually do a weekly 10% water change, but last week I skipped. I am going to try to go 2 weeks and see what happens. The tank and all the inhabitants look great.
As a side note, the thing I like best about my BakPak is the skimmer cup is a great ampiopod trap, the get stuck on the lip and once a day I pick them off and drop them in the refugium.