Aeration will definately slow or even halt eutrophication. There also bacterial products that can consume up to an inch of organic sludge per week. Of course this depends on the temperature of the water, dissolved oxygen levels and other limiting factors. There is also a fair amount of labor in the preperation of the bacteria and seeding the pond bottom but it is a great alternative to dredging. The best part for pondmeisters is that the bacteria eventually become food for larger organisms which in turn become food for even higher life forms. I'm talkin' fish food here!
