Pond Boss Magazine
https://www.pondboss.com/images/userfiles/image/20130301193901_6_150by50orangewhyshouldsubscribejpeg.jpg
Advertisment
Newest Members
Mrnot111, pondbear, N.C.PondJoe, LloydLusk, Catch N 8 NTex
18,579 Registered Users
Forum Statistics
Forums36
Topics41,094
Posts559,502
Members18,580
Most Online3,612
Jan 10th, 2023
Top Posters
esshup 28,708
ewest 21,546
Cecil Baird1 20,043
Bill Cody 15,196
Who's Online Now
15 members (esshup, Chadsnider, FishinRod, RossC, gehajake, DeerTexas, Ron crismon, Sunil, LANGSTER, Bigtrh24, jludwig, Whatever, Jason D, 4CornersPuddle, Errfoil), 829 guests, and 540 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
#532841 03/25/21 05:11 PM
Joined: Apr 2018
Posts: 25
T
Tyler D Offline OP
OP Offline
T
Joined: Apr 2018
Posts: 25
3/4 acre pond, 9’ deep, western N.Y.

Had a bad fish kill a couple years ago, was advised that my aerator was too deep (7’). So now I have it set at 4’ for the winter and run it about 25 minutes a day.
Had about 40 fish dead this week, also have some that are beaching themselves, gasping for oxygen, but just a few of those so far.
Did I not run the aerator long enough, too much?
The ice has only been off for a couple days, should I run the aerator more or?

Joined: May 2013
Posts: 2,907
Likes: 148
C
Offline
C
Joined: May 2013
Posts: 2,907
Likes: 148
Once ice is off there should be no problems finding oxygen as long as there is surface wind hitting your pond. You are not running it very long (25 minutes) and in 4' of water they should be able to find other warm water in the depths so that seems to rule out 'supercooling'

What type of fish are beaching or gasping? Small, large? all the same size class or mixed classes?

I'm wondering if you have a source of sulfide gas or methane gas being released making them suffer from the toxin effect rather than lack of oxygen? That might explain the last winter kill as well if it occurred around the same time of year?

Joined: May 2014
Posts: 3,868
Likes: 301
A
Offline
A
Joined: May 2014
Posts: 3,868
Likes: 301
Tyler, what species of fish are dying? Is it just one species, or several? Some are more sensitive to anoxia than others.


7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160




Joined: Jan 2009
Posts: 28,709
Likes: 895
Moderator
Ambassador
Field Correspondent
Lunker
Online Content
Moderator
Ambassador
Field Correspondent
Lunker
Joined: Jan 2009
Posts: 28,709
Likes: 895
Is the diffuser in the same place or did you move it? How big of a hole was kept open in the pond compared to the total surface area (percentage wise)?


www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).
Joined: Apr 2018
Posts: 25
T
Tyler D Offline OP
OP Offline
T
Joined: Apr 2018
Posts: 25
Yes, the die-off occurred at ice out or before last time. Mostly large bluegills with a few large shiners, only other fish in the pond are some perch.

The diffuser was in the same area as in previous years, only moved in toward shore to 4’ of water instead of 7’.

The hole in the ice was seldom larger than about 2 1/2 feet. Many times this winter, the hole froze back over within half an hour of the aerator being shut off.

Joined: Aug 2017
Posts: 233
Likes: 15
J
Offline
J
Joined: Aug 2017
Posts: 233
Likes: 15
I run diffusers through winter, 24-7, ice never freezes over completely. Cut back from three to two during this time, slightly deeper than yours. Bass, bluegill, perch all do fine, this winter was a cold one and zero die offs.

Joined: May 2018
Posts: 1,902
Likes: 281
J
Offline
J
Joined: May 2018
Posts: 1,902
Likes: 281
Tyler,

Do you have a lot of vegetation in the pond going into the winter freeze? This sound very similar to rapid DO depletion due to decomposition as the water warms.


It isn't what we don't know that gives us trouble, it's what we know that ain't so - Will Rogers


Joined: Jan 2009
Posts: 28,709
Likes: 895
Moderator
Ambassador
Field Correspondent
Lunker
Online Content
Moderator
Ambassador
Field Correspondent
Lunker
Joined: Jan 2009
Posts: 28,709
Likes: 895
Originally Posted by jpsdad
Tyler,

Do you have a lot of vegetation in the pond going into the winter freeze? This sound very similar to rapid DO depletion due to decomposition as the water warms.


That's my thoughts too. That situation (DO depletion due to decomp) could have been exacerbated due to ice and snow cover depleting the DO during the winter and the rapid decomp finally tipped the scale.


www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).
Joined: Apr 2018
Posts: 25
T
Tyler D Offline OP
OP Offline
T
Joined: Apr 2018
Posts: 25
Lots of leaves, pond surrounded by trees, some weeds but not too many.

Should I start running my aerator more or ?

Thank you all for the help so far.

Joined: Jan 2011
Posts: 541
Likes: 77
4
Online Content
4
Joined: Jan 2011
Posts: 541
Likes: 77
Here in Colorado I run my aerator, a simple piece of PVC with 1/16th" holes drilled in it, 24/7 in winter. Pond is 9' deep at beginning of winter and drains down to 5' deep by spring. Bubbler device is set in 5' of water at startup in November, which becomes 1' by spring. Weeds are very abundant in fall at ice up.
Trout, LMB, BG, GSF, YP, TGCarp, assorted other oddities all survive just fine.
It's very possible the shallow water gets super cooled by this winter mixing. My fish don't take any kind of bait or lures during the winter, but arrive at the dock the next spring for pellets and mealworms. In 12 years I've only seen 2 dead floating trout and no other fish. No fungus on those warm water fish.
If it were my pond, and of course it's not, I'd run that aerator constantly in the winter, keeping a reasonable hole open throughout the winter. The hole would be close to shore so that any creature falling in could access shallow water by the bank to climb back out. One of our house cats, while prowling (looking for trouble) out on the deteriorating ice in the middle of the pond one spring, fell through. He broke ice for a few seconds, then managed to clamber back on to the surface. Oh, the looks of disgust I got when I was laughing at him as he dripped up on to the dry ground.

1 member likes this: jpsdad

Link Copied to Clipboard
Today's Birthdays
benji havens
Recent Posts
curly leaf infestation
by esshup - 06/21/24 01:29 PM
Hybrid Crappie
by FishinRod - 06/21/24 01:25 PM
Semi Trash Pump
by Whatever - 06/21/24 12:13 PM
Some nice pumpkins seeds yesterday
by Retired on 40 - 06/21/24 09:35 AM
What did you do at your pond today?
by Sunil - 06/21/24 08:36 AM
Fry Identification
by Sunil - 06/21/24 07:31 AM
Help with system choice
by esshup - 06/21/24 07:27 AM
Poor preachers pond
by Sunil - 06/20/24 05:50 PM
New YP/SMB Pond in MI - Plan
by esshup - 06/20/24 05:21 PM
Rotary Vane Capacitor issue?
by fozzybear - 06/20/24 07:22 AM
Duckweed Removal Solved!
by esshup - 06/19/24 11:40 PM
Golden Shiners - What size to stock?
by Bill Cody - 06/19/24 07:32 PM
Newly Uploaded Images
Eagles Over The Pond Yesterday
Eagles Over The Pond Yesterday
by Tbar, December 10
Deer at Theo's 2023
Deer at Theo's 2023
by Theo Gallus, November 13
Minnow identification
Minnow identification
by Mike Troyer, October 6
Sharing the Food
Sharing the Food
by FishinRod, September 9
Nice BGxRES
Nice BGxRES
by Theo Gallus, July 28
Snake Identification
Snake Identification
by Rangersedge, July 12

� 2014 POND BOSS INC. all rights reserved USA and Worldwide

Powered by UBB.threads™ PHP Forum Software 7.7.5