There is a good article on causes of fish kills in the current issue of Pond Boss Magazine (PBM) you might find helpful. If you do not subscribe, you can order a copy by calling the Pond Boss office.(800) 687-6075. I found it interesting that when other possible causes have been eliminated, the kills are often attributed to "algal toxicity".

Last edited by Bill D.; 04/26/18 06:44 AM.
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