I have used a large fish-tank net in the small amount of weeds on the edge, and only caught what appear to be FHM. I also have never seen any nests. The BG would likely keep me from making this a SMB pond. I have also seen no signs of the YP. How large do RES need to be to spawn? I suspect I'll see nests once they start, but they were only 2-3" when stocked last fall, and I found 2 of the 25 stocked, dead.