I have a 2 acre pond being dug as we speak in Indiana. What i need to know is if i need aeration or not for bluegill, F1s, redear, and baitfish. I would like to get maximum growth possible, and keep my pond free of excessive weed growth. Would one windmill be sufficient, or should i have two? Would i be better off by going with a fountain or diffuser type system rather than windmill(s)?