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Bass dying in Pond

Posted on 6/29/18 at 1:43 pm
Posted by DelaTiger
Maurepas
Member since Jul 2015
42 posts
Posted on 6/29/18 at 1:43 pm
About two months ago, I fertilized my one acre, 15’ depth pond with BioLogic Perfect Pond Plus. Up until the last two weeks, the water color was green and the visual depth was about 18”. Now the water has turned rusty/brown and I can see only about 4”-6”. I’m assuming a have an algae problem, so I’ve been running a 2” circulation pump (suction end at approximately 10’) while also aerating with an old septic air pump. The air pump discharge is at about 10’ as well.
I stocked the pond with 500 bluegill last summer and added 100 bass fingerlings a couple months ago. I’ve also thrown in about a dozen 1lb-2lb bass over the last few months. Although my pond water has been looking terrible, I haven’t had any problems with my fish...until today. Just found three of the 1lb-2lb bass floating. Has anyone experienced this problem? Any advice to help prevent even more fish from dying will be appreciated.
This post was edited on 6/29/18 at 1:48 pm
Posted by mack the knife
EBR
Member since Oct 2012
4185 posts
Posted on 6/29/18 at 1:50 pm to
that's odd. 15' should be deep enough to avoid too hot of conditions for the bass. especially if you are aerating.
i went to LSU with the owner of La Pond Management. He has his MS in aquaculture and knows his stuff: 225-308-4145.
good luck
Posted by TheDrunkenTigah
Baton Rouge
Member since Aug 2011
17319 posts
Posted on 6/29/18 at 2:00 pm to
Everything you described sounds like hypoxia due to the algae bloom dying, but the aeration should be helping with that. I would have someone come look it at and determine if the pump is big enough. It's crazy how much flow you need to turn over. 1 acre is kinda small and this is one of the reasons why.
Posted by mack the knife
EBR
Member since Oct 2012
4185 posts
Posted on 6/29/18 at 2:02 pm to
smaller ponds do tend to be more delicate (personal experience)
how many hp is the pump you have?
Posted by DelaTiger
Maurepas
Member since Jul 2015
42 posts
Posted on 6/29/18 at 2:06 pm to
Thank You!
Posted by DelaTiger
Maurepas
Member since Jul 2015
42 posts
Posted on 6/29/18 at 2:11 pm to
It’s a 2” submersible pump, but I don’t know the HP or GPM specs. I have it discharging back into the pond at about 2’ above it’s surface.
Posted by saltwaterdawg
Member since Nov 2016
870 posts
Posted on 6/29/18 at 2:20 pm to
I have had that problem in the past. I saved our fish by running aroun the pond with an outboard motor. Guess I forced oxygen into the water
Posted by way_south
Member since Jul 2017
813 posts
Posted on 6/29/18 at 2:48 pm to
Call the aquacologist at LSU, very helpful guy.

dr greg lutz

glutz@agcenter.lsu.edu
direct 225-765-2848x202
Posted by VernonPLSUfan
Leesville, La.
Member since Sep 2007
15846 posts
Posted on 6/29/18 at 3:02 pm to
Maybe you have too many fish. Seems like a lot for an acre.
Posted by Buster180
Member since Jun 2017
1455 posts
Posted on 6/29/18 at 3:41 pm to
quote:

100 bass fingerlings a couple months ago


quote:

 I’ve also thrown in about a dozen 1lb-2lb bass over the last few months.


Those bass fingerlings made for some expensive fish feed.

Posted by keakar
Member since Jan 2017
30024 posts
Posted on 6/29/18 at 4:10 pm to
algae dies it depletes oxygen, you created your own dead zone in the pond and now must wait it out and restock after it recovers
Posted by DelaTiger
Maurepas
Member since Jul 2015
42 posts
Posted on 6/29/18 at 4:58 pm to
You think the mature bass wiped out the fingerlings? I also added 15lbs of flathead minnows and 250 redear bream and was banking on the mature bass going after them first.
Posted by Geauxtiga
No man's land
Member since Jan 2008
34377 posts
Posted on 6/29/18 at 6:53 pm to
quote:

You think the mature bass wiped out the fingerlings
Indeed. That's why they recommend putting bass in well after others. I think it's a yr later?? Been a long time, maybe someone can help me out here.
This post was edited on 6/29/18 at 6:55 pm
Posted by 007mag
Death Valley, Sec. 408
Member since Dec 2011
3873 posts
Posted on 6/29/18 at 7:08 pm to
quote:

Those bass fingerlings made for some expensive fish feed.

never understand why people feel the need to throw random fish into their ponds. My neighbor once threw 2 30-50lb flat head catfish in his pond he had stocked with 6" F1 Florida hybrid bass.
Posted by Purple Spoon
Hoth
Member since Feb 2005
17829 posts
Posted on 6/29/18 at 7:23 pm to
I would have loved to fry one of those after about 6 months. It would be like slaughtering a fed out calf.
Posted by 007mag
Death Valley, Sec. 408
Member since Dec 2011
3873 posts
Posted on 6/29/18 at 8:50 pm to
They hooked them a few times but never caught them. Figure they either dead by now or left with the flood.
Posted by Jeff Goldblum
Gardner, LA
Member since Nov 2004
1039 posts
Posted on 6/29/18 at 9:23 pm to
Before you fertilized, did you check pH and water hardness? Getting the alkalinity right absorbs much of the negative effects of fertilization.

Also make sure to never fertilize after the water gets warm. The dissolved oxygen levels taper down. Algae die offs are moat troublesome in hot weather.
Posted by DelaTiger
Maurepas
Member since Jul 2015
42 posts
Posted on 6/29/18 at 9:48 pm to
LA Pond Management came out and they think I’ll be ok. Their biologist took a water sample and I’m going to run their pond aerator for a month to be safe.
Posted by bootlegger
Ponchatoula
Member since Dec 2012
5337 posts
Posted on 6/29/18 at 9:54 pm to
The 3 acre lake at our pond has the same issue last month. Ken came out and tested the oxygen, and it was low. We used a 6" trailer pump and rectified the issue in about a day. Lost some good fish though.
Posted by aVatiger
Water
Member since Jan 2006
27967 posts
Posted on 6/29/18 at 11:10 pm to
I'll chime in when I'm more sober/awake, but you should join and ask the Pond Boss forum. Great bunch of people that can help you fwiw
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