Dave- my pond still had fish in it even after losing the spillway. It still held 4-5 ft. of water so the fish made it thru all that. Fact is way to many made it. I have BG & LMG that are stunted, no LMB over 3lbs & very few big gills.I didnt find any dead fish after refilling the pond, just the big change in water color & clarity. I still have 1 Koi thats huge & a grass Carp that must be 20lb.I first stocked the pond in 1985.Still have a shovelhead cat thats over 10lb for I watched a 11yr old neighbor boy catch it on a doughball right after the spillway was fixed.That was exciting for me just to watch that little boy battle that big cat.