Its doubtful that the perch saw a 100% kill. Trout and the larger fish need more disolved oxygen and die out first. If there were little perch, and guaranteed there were if there were bigger ones present, they can almost survive anything. Its unfortunate, if its gonna kill and there were relocated perch youd like to see everything dead so you can start over with the trout.
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MULEY MULISHA
It's just Alberta boys... Take what you can while you can,, if ya cant beat em join em.
Keep a strain on er
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