I don�t have the tilapia option in Missouri. I wonder if copper sulfate will work on it? I have some left from my FA outbreak this spring.
Thx

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.