Wow, good news on the grass shrimp and papershells. I put in grass shrimp a year ago, and haven't seen one since. The shipment got lost on the way from Nebraska to Missouri (thank you USP) but they seemed ok when released. I had put in 50 crayfish earlier last spring. Haven't seen one of those since either.
Might be time for me to put the minnow trap back out. All earlier efforts with all kinds of traps and nets, all resulted in nothing but thousands and thousands of tadpoles. Ha

9 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (going away), SMB, and HSB (only one seen in 5 yrs) Restocked HSB (2020) Have seen one of these.
I think that's about all I should put in my little pond.
Otter attack in 2023