It could have been a quick water temp change, a bunch of crud washing in with a big rain or just handling issues. Hard to tell, but, like Ewest says, nothing unusual about some morts when stocking small fish.

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