Re Aeration: Have 1 acre pond, 15 yrs old, stocked for 4 years in E. Central Ia. The 1st 3 years after stocking simply put a large round bale in at shore edge before freezeup. Had no problems with winterkill. Did not break ice nor remove snow. Last year I got "professional" and installed a 1/2 horse Gast "fin" pump, 1/2" tube and stainless steel diffuser in deep water. Created a 15-20' hole in 8" of ice all winter. This spring I had fish kill (LMB, HBG, couple of CC). Needless to say I now have a cheap big bale of grasshay at the pond edge. We'll see what happens come spring. Thanks-Postbeetle.
