Brand of aerator?
as far as system I have gathered from this site that for a 1/4 acre pond -1 diffuser should be sufficient placed in the 8-10' range.( max depth should be 16' when at full pool)
I am also gathering that my 75 perch, 30 trout, and 3 channel cats are close to the sustainable limits of a 1/4 acre pond assuming water temps will stay favorable....
can the # of trout be added to....maybe a mother 30 bringing the total up to 60 total?
a little off topic.....
thanks