Whoa, that looks serious. I've battled bacterial infections on caged fish before - not saying that's what you've got here, but looks similar to the stress induced infections I've seen on my fish. Do you feed? If so, you can treat bacterial infections [if that's what this is] using medicated feed. It's worked for me the 3 times I've needed to stem the epidemic on my hatchery. If you can verify this is a bacterial infection [I'm not a fish pathology expert, but looks like it to me] then I can help walk you through the steps to treat the BG provided you feed them. If you don't feed there's no way to treat your entire pond to combat the infection, so you'll likely just need to wait this out...which is not likely what you wanted to read.


Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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