you are going to get a lot more intelligent replies than this, but my thoughts are based upon my experience with redoing an old 1 acre pond in central texas, first,do you have an algae problem, are you wanting to stock with fish, do you see dead fish, aeration will improve all of the above , now when it comes to system questions i will wait for some of the regular members of this forum, ted lea, and others to give you some technical advice. good luck this is a great place to ask questions.david903
