Shorty, how old is that RES? 10" looks great. Mine are not feed trained, and have only been in for a few months, but I see them lurking along the shoreline every now and then. Hopefully they'll find enough snails to get that big.

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