I'm really glad the experts have jumped in here. Great advice from them. I second TJ's comments above about YP. They are great eating, and easy to fillet. Once I found out how to catch them, they are pretty easy for grandkids to catch. (Spring and fall)
The last video looks good. Lots of progress.
Also, I overstocked on the FHM, and they are still present 15 months after stocking SMB, and HSB. Almost 20 months since stocking YP and RES. My GSH are doing well also.

12 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (decreasing), SMB, and HSB (only two have been seen in 5 yrs)
I think that's about all I should put in my little pond.
Otter attack in 2023.