P. kadiakensis survive cold temps. Have self sustaining populations in all my ponds. They are the only species available suitable for cold seasons.
Looking for a larger prey item for SMB? GSH grow 8-10". It would require a 4-5# SMB to utilize as prey item. Per my previous posts, YP serve as excellent forage for SMB, and are a great species on their own merit IMO. Those that escape predation from SMB have a great chance to grow to be trophy fish 13"+.