Hi all.
New to these forums. We just got some land with a pond on it. Luckily, the previous owners agreed to still maintain the pond... When we got there today (after about 3 days of heavy rain), almost all the fish in our lake were dead. They put copper sulfate in the pond about 2 weeks ago. Is there anyway that the sulfate or rain would have killed them? They definitely died within the last 3 days, we are sure of that. All help appreciated
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