Jason, I have a small 1/4 to 1/3 acre stock tank that I put a pound of fatheads and 50 bluegills in a year and a half ago. We have seined a lot of fatheads and blue gill to add to other ponds and there are currently many more than I originally stocked. There are so many that I had DO crash last Spring and lost some bluegills and catfish. The water,which is down a lot right now,is a pea green color, I assume, from having too much manure from crowded conditions. I have about decided that fatheads can live and spawn in a nuclear waste dump. I have another very small 30 ft. by 30 ft water hole that I put some fatheads and small bluegills in a year ago. It is still loaded with fatheads. The bluegill can't stay ahead of them.