DD1 says: ""They only spawn annually and, sooner or later, seem to disappear. They just get out spawned by the BG."" I also find this usually true PROVIDING there are LMB in the pond. LMB seem to eat a proportionally larger amount of GSF compared to BG when both sunfish are present is similar numbers until the GSF become scarce. If it is an experimental pond I like esshup's idea of adding HSB and see how the GSF perform with HSB as predator??? Doesn't work add LMB. Interesting test for all of us to learn from.
