If you have a 14 acre lake with an ave depth of 8 ft you have roughly 36.5 million
Gallons of h2o. For comparison sake you are adding 4 lbs of bacteria to approx
320 million "pounds" of water. Add to this the fact that your pond already contains a gazillion of these bacteria ( I counted) and I have to believe it is the aeration and mechanical disturbance in conjunction with the already present bacteria that is accounting for your muck breakdown
I read an article that I can't find now about how much life is in "muck" and the numbers are mind boggling. By aeration and mech disturbance you are providing them with a more favorable work environment. Like opening a bacterial Starbucks.
The enzymes are interesting, but keep in mind that enzymes are proteins and have
A limited life span before they break down themselves.
I think that in a small landscape pond these additions are significant, but have a hard time
Seeing this in a large bow
I am always willing to admit I am wrong, and I am looking forward to further results. Thank you for posting this experiment and I don't mean to sound disparaging