Thanks Guys for the great info, and for the answer to how I got to stop raking my filamentous algae. Cecil had posted that Tilapia are not allowed in Indiana and my pond just drains into a dried up holler and rarely overflows,so I thought I got to try something with this algae. So all I can say is this will be the only way I will fight filamentous algae from now on,hated the chemicals since I'm on well (my family comes first) and the expense of buying every few weeks (my wife finally gave me back my checkbook and a big hugggg and she loves the look of pond after just 3 weeks. The type sounds like( Mile ) and they are eating machines like others have posted. Great info on how to do well for pond. Might try the larger pump first on present well, since I have never ran out of water .
Thanks to all of you PO