TCBENBOW, I would not use the oak limbs unless they had plenty of time to dry. Oaks have tannins that are lethal to fish. I tried them on a new pond. The tannins turned the water black and killed all of my stockers. I had to pump it dry and burn the whole thing. Then waited for some pretty elusive West Texas rain to restock.

I later experimented. I cut a piece of oak that was about 18 inches long and 10 inches thick. Then filled a tank, about bathtub size or larger with water. I waited 3 or 4 days and added a dozen minnows. They were dead by the next morning.

Of course, the questions would be the amount of oak to water and the size of the tank/ impoundment or?

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