Oh thats just great.Weve taken a simple project and made it compicated.Good idea GW,but now we need to know if the preditor fish will go up the pipe into the minnow pond,or if they just hang out at the end of the pipe for free lunch all day

I was picturing a 4 - 6 inch pipe for that reason, maybe with a some chicken wire over one end. I imagine the minnows could detect better water quality at the opposite end of the pipe when overcrowding became an issue in the minnow pond.