Pond Boss Magazine
https://www.pondboss.com/images/userfiles/image/20130301193901_6_150by50orangewhyshouldsubscribejpeg.jpg
Advertisment
Newest Members
Shotgun01, Dan H, Stipker, LunkerHunt23, Jeanjules
18,451 Registered Users
Forum Statistics
Forums36
Topics40,902
Posts557,128
Members18,452
Most Online3,612
Jan 10th, 2023
Top Posters
esshup 28,422
ewest 21,475
Cecil Baird1 20,043
Bill Cody 15,112
Who's Online Now
16 members (jpsdad, rjackson, esshup, Boondoggle, jbird5986, Sunil, Rick O, Angler8689, anthropic, Justin W, Bing, bstone261, DenaTroyer, Theo Gallus, Shorthose, Freg), 959 guests, and 191 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Joined: Jul 2020
Posts: 1
M
OP Offline
M
Joined: Jul 2020
Posts: 1
Yesterday, I did a water exchange like I normally do while I vacuumed the bottom of my 1500 gallon pond. Following that most of my young tilapia (2nd and 3rd generation) started hovering on the surface while gulping for air while swimming backward in unison. Total fish in pond including goldfish is perhaps 200.

Joined: Jul 2005
Posts: 4,596
Likes: 36
Lunker
Offline
Lunker
Joined: Jul 2005
Posts: 4,596
Likes: 36
Fish piping at the surface is a sign of a dissolved oxygen sag. Are you aerating?



Joined: Apr 2012
Posts: 186
Likes: 2
J
Offline
J
Joined: Apr 2012
Posts: 186
Likes: 2
They used to swim in schools on the surface in my pond.

Joined: Jan 2009
Posts: 28,422
Likes: 794
Moderator
Ambassador
Field Correspondent
Lunker
Online Content
Moderator
Ambassador
Field Correspondent
Lunker
Joined: Jan 2009
Posts: 28,422
Likes: 794
Low O2. When you did the water exchange, was it well water or was it water that had O2 in it? My guess is water was put into the tank/pond that had little or no O2 and it dropped the O2 level in the pond by half.


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: Jun 2016
Posts: 2,344
Likes: 101
Offline
Joined: Jun 2016
Posts: 2,344
Likes: 101
+1 on low dissolved oxygen.

In my old aquarium keeping days, a 10% water change was considered safe so long as the frequency was often enough. The frequency depends on the bio load in the aquarium. If I let the tank get off schedule, I would often perform a 20% water change without issue. I was not pushing the limits of biomass to gallons of water.

How much water was exchanged? How often is this performed? How much biomass in the tank? What was the difference in water temp between tank water and new water? What's the average length of fish?


Fish on!,
Noel

Link Copied to Clipboard
Today's Birthdays
cro, HC1968
Recent Posts
Relative weight charts in Excel ? Calculations?
by jpsdad - 03/29/24 08:24 AM
pond experience needed
by esshup - 03/29/24 08:19 AM
Can anyone ID these minnows?
by Sunil - 03/29/24 07:31 AM
Dewatering bags seeded to form berms?
by RogersTailgate - 03/29/24 05:45 AM
New pond middle TN: establishing food chain?
by Bill Cody - 03/28/24 07:57 PM
Happy Birthday Bob Lusk!!
by FireIsHot - 03/28/24 07:33 PM
Working on a .5acre disaster, I mean pond.
by PRCS - 03/28/24 06:39 PM
Fungus infection on fish
by nvcdl - 03/28/24 06:07 PM
1 year after stocking question
by esshup - 03/28/24 04:48 PM
Yellow Perch Spawn 2024
by H20fwler - 03/28/24 04:29 PM
New 2 acre pond stocking plan
by LANGSTER - 03/28/24 03:49 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