Firstly - Because you are feeding Purina AMax 500 and Endurance Pro what brand of feeder are you using?
Secondly - How big is the pond?
Thirdly - For your 4 year old 15 ft deep pond, how many fish have you harvested from this pond with springs that bring new water in and old water out over the spillway about 20+ gallons a min.?
Fourthly - what is the fishery goal or goals for this pond?
1 - TX Feeder
2 - 1.2 acres
3 - about 80
4 - 1lb+ BG. 100% i am trying to keep 5 large LMB by marketing them and culling all others, but, if they see to be a problem, then i'll lean towards having big BG over LMB.
