I've seen and worked with lots of small GSF and those are not young GSF. In your video there was at least one fathead minnow flipping in the net. This indicates to me that all these fish came from the pond. It is remotely possible that in LA when there was a fish stocking in October that a few of the stocked fish were large enough to spawn. Sunfish especially those raised in the South can easily spawn at 2.5"-3" long and several of your stockers were likely that large.
Those small fingerlings could be small RES. Keep a good eye on what grows this year to get a better view of them as larger individuals. These small sunfish with ample food could easily be 5"-7" long by October 2017. Catch some of them and provide more pictures to this thread for the 'rest of the story'. When you add your bass latter this year try to locate some that are 3X longer than those small sunfish which means at least some bass 4"-6" long. These larger bass will grow really well on those small sunfish.
Last edited by Bill Cody; 02/07/17 02:38 PM.