Pretty green alright but I'm not sure it is lethal. I'm judging by the pic of the stump.
Can you get someone to do a sechi test? A sechi disk can be a white or silver piece of plastic or metal that is lowered, via a weighted string/cord, into the pond. When it disappears you know the clarity. Ideally, it should be between 16 to about 24 to 30 inches. A round top of a coffee can or paint can top is what I generally use.
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
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