Pond Boss Forums GENERAL QUESTIONS Help Large Carps are dying in pond. Anything I can do?

I was surprised that I lost all of my CC, but LMB and BG survived a winterkill. Larger sized fish do seem more vulnerable. I did think that carp were particularly resistant to low O2?

https://journals.sagepub.com/doi/10.1354/vp.43-3-302

Also see Table A3 here:

https://journals.sagepub.com/doi/10.1354/vp.43-3-302