Fresh oaks, depending upon your water quality, can be deadly. Dried ones should be OK. Test by cutting a piece and dumping it in a bucket of natural water. If it discolors the water, burn them. If it doesn't, thsy should be OK.

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