I've never considered turtles a problem. To me, they are mostly the clean up crew when a fish is sick or dies. They are mostly vegetarians. A snapping turtle will take an occasional healthy fish but it is unusual.

I know nothing about snakes as predators of fish. I'm sure they are but doubt that they can effect the population balance. I did catch a huge brown water snake a couple of years ago in a large fish trap and I figure he was in there due to the fish that I had caught. I released it. I dang sure don't like getting them in a seine but it happens.

Both snakes and turtles will come and go in the pond. I don't worry about them.

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP Grandpa