I am just simply saying be careful in stocking NP into a pond. It's 1.5 acres, not a lot of room for a climax predator like NP. In ponds that size, manual harvest is a more controlled solution and not nearly as hard to do as it is with a larger body of water such as a 5+ acre pond. If 4 NP can decimate a 3 acre pond, I suspect it can occur much easier in a pond half that size. In the article it mentions that NP compete with anglers eating lots of 8"-10" YP. They're also going to eat a lot of other harvestable sized panfish. Just a simple word of caution. Each pond owner can do as they wish, it is their pond....