CJ has a point about the aerating and i thought i read you were using one, but now after re-reading i must admit i dont see what i thought i did see. Maybe i'm biased, but after having air since the inception of my pond i cant see being without it. Just the same with a deep hole. Of course as CJ mentioned they are not worthwhile unless they are used together. I dont have WM so i cant be a case study to verify if my theory does work. But i can only theorize that more air and more depth=more feeding and more often no matter what type of fish it is. Heat causes slow fish period in my opinion. Just keep in mind i have no degree to back up that statement, just what i think makes sense.
