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Major fish kill in our 35 acre lake. This happened 5-6 years ago too.
Posted on 9/14/26 at 8:10 pm
Posted on 9/14/26 at 8:10 pm
Lake is 8-10ft deep in deeper parts. What would cause it and how to fix it
This post was edited on 9/14/26 at 8:12 pm
Posted on 9/14/26 at 8:27 pm to 1609tiger
Hot temperatures = low oxygen content = dead fish.
Posted on 9/14/26 at 8:47 pm to aTmTexas Dillo
Usually a lake that size can take the hit. How many dead we talking?
We had what I would call a ‘minor’ fish kill in my 11 acre lake and I think it actually helped.
Edit: my lake is much deeper in spots so maybe it didn’t affect mine as badly.
We had what I would call a ‘minor’ fish kill in my 11 acre lake and I think it actually helped.
Edit: my lake is much deeper in spots so maybe it didn’t affect mine as badly.
This post was edited on 9/14/26 at 8:48 pm
Posted on 9/15/26 at 7:30 am to 1609tiger
Sounds like you had a turnover. Low oxygen on bottom of lake got mixed in with the upper level. Get a bunch of rain or heavy winds? Both will do it of conditions are right.
Posted on 9/15/26 at 10:49 am to 1609tiger
Pond Management - Fish Kills
Managing MS Ponds & Small Lakes, Unexpected Fish Kills, p.33-35
If you have pond-small lake in the Deep South, at some point in time you are going to have a fish kill, it’s not a question of “if”, it’s a question of “when”.
You have to know the cause, to potentially “fix it”. Most likely causes are listed in the attached publications. 90%+ chance that at this time of the year it was low dissolved oxygen related, associated with a weather event, a dense algal bloom and/or a phytoplankton die off. Often time- most of the time, all three are related to each other.
Managing MS Ponds & Small Lakes, Unexpected Fish Kills, p.33-35
If you have pond-small lake in the Deep South, at some point in time you are going to have a fish kill, it’s not a question of “if”, it’s a question of “when”.
You have to know the cause, to potentially “fix it”. Most likely causes are listed in the attached publications. 90%+ chance that at this time of the year it was low dissolved oxygen related, associated with a weather event, a dense algal bloom and/or a phytoplankton die off. Often time- most of the time, all three are related to each other.
Posted on 9/15/26 at 10:55 am to TrueTiger07
quote:
my lake is much deeper in spots so maybe it didn’t affect mine as badly.
The deeper the lake, the higher the likelihood of having a low dissolved oxygen “turnover” event as mentioned by Hogzealot.
Posted on 9/15/26 at 12:13 pm to 1609tiger
Get an oxygen meter and 3-4 aerators. This time of the year catfish farmers are up nights monitoring their large ponds and running aerators where needed.
portable pto aerator
portable pto aerator
Posted on 9/15/26 at 5:29 pm to CrawDude
Crawdude, you obviously know a lot about this subject. Hoping this doesn’t happen to my lake. It seems it’s always on the precipice this time of year. Thanks for the info!
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