Yes 6 inch LMB would be able to spawn next year in your location. With out high predation (IMO GSF can't provide that) tilapia can fill up biomass like no other pond fish even BG.

The risk of using less but larger LMB in your situation is far less than the risk of missing (over or under) your needs by using 2 inch LMB and $20 as well.

Last edited by ewest; 06/21/16 04:23 PM.