Quote:
Originally Posted by
dick benbow 
One of the things I think we all focus on ( and rightly so ) is the koi, but the truth of the matter is that the bacteria is just as important. make it first class accomodations for them and your koi benefit. Air as well as PH is every bit as important to our bacteria as the koi.
for example, I have J-mat in an upflow vortex chamber, 3 in series. Air is underneath the mat and air on top next to the exit pipe as it heads into the next chamber. This effort as well as a three stack bakki that exits directly back to the pond, keeps O2 levels maxed in both the pond and filters
I say all this because I wonder if all your air you have allocated now, should be within the pond of if your filtration bacteria could benefit from some additional air. I couldn't comment properly without knowledge of your filtration and airstone placement....
