I have a relatively shallow half acre pond in Wisconsin. It has heavy cover and the average depth is 5-6 feet. The only thing in it are some sticklebacks and #25 of FHM and i plan to stock in spring. The main forage will be BG and i plan on adding a small amount of YP. My question is if i get LMB what other predator can i put in without disrupting the balance. HSB might work but i don't want to constantly restock. CC would work but there definitely is spawning habitat and i don't want them making the water brown. I would love WE but the water fluctuates a lot with air temps so i don't think they would work and the same with SMB along with the fact that i don't have any rock. Any ideas?

0.7 acre pond stocked 2020, LMB, PS, YP.