Fish Dying

Joined
Oct 5, 2017
Messages
17
Reaction score
2
Country
Have a 1,000 gallon fish pond and have had for 6 years with no problem. In last 2 weeks have lost 3 koi. I have treated the pond with a 7 day treatment of Knock Out. The pond water PH was high (9 i think) so I have put recommended stuff from a local pond store and it is down into range now. This am I have another fish floating on side and swimming with it's head down. I was told not to change water out it would stress the remaining Koi too much. Any suggestions on what could be wrong that I can correct. This is the first time we have ever had any problems with our pond. Also want to mention that my trouble started about 4 days after I found a live baby coon in our back yard, not sure if this would have anything to do with it.
 
A

Advertising

A

Advertising

Joined
Jun 8, 2016
Messages
2,643
Reaction score
2,526
Hardiness Zone
5b
Country
Hi, so sorry for your loss!
How many fish did you have in there before they started dying? Could be that the fish load got to be too much for your filter to keep up with (?)

I hope you can save the rest of your fish
 
Joined
Oct 5, 2017
Messages
17
Reaction score
2
Country
Here is the water test from this afternoon and pictures of 2 of the fish that have died. The other one that has been floating was at bottom of pond now still alive for now. The orange was alive on Saturday and then dead on Sunday afternoon. The other one I found in skimmer 4 days before orange one died.
Ammonia less than .25
nitrate 4.5
Alkalinity 130
Ph 8
 

Attachments

Joined
Aug 30, 2016
Messages
295
Reaction score
529
Location
Utah
Hardiness Zone
5b
How many fish and what sizes are they?
When did you add the last fish?
When did you do the last real bacterial treatment (prior to Knockout of which I'm very skeptical)?
 
Joined
Oct 5, 2017
Messages
17
Reaction score
2
Country
Hi, so sorry for your loss!
How many fish did you have in there before they started dying? Could be that the fish load got to be too much for your filter to keep up with (?)

I hope you can save the rest of your fish
Only have 6 no bigger than 6 or 7 inches
 
Joined
Oct 5, 2017
Messages
17
Reaction score
2
Country
How many fish and what sizes are they?
When did you add the last fish?
When did you do the last real bacterial treatment (prior to Knockout of which I'm very skeptical)?
Added one last week afraid to add anything. On had 6 the orange was the biggest added a new one back in april
 
Joined
Oct 5, 2017
Messages
17
Reaction score
2
Country
Hi, so sorry for your loss!
How many fish did you have in there before they started dying? Could be that the fish load got to be too much for your filter to keep up with (?)

I hope you can save the rest of your fish
There were only 6 to start
 
Reactions: Jhn
Joined
Oct 5, 2017
Messages
17
Reaction score
2
Country
I am so sorry about your fish. Test the nitrite . Are those lesions on the orange fish?
Appears to me they are, did not see any though the day before I found it had died.
 

j.w

I Love my Goldies
Joined
Feb 1, 2010
Messages
25,013
Reaction score
14,881
Location
Arlington, Washington
Hardiness Zone
USDA 8a
Country
Wondering if raccoons could have injured those fish and they just died from wounds and shock? Although if the raccoons would have gotten a hold of them you would think they would have eaten at least one or more. Can the raccoons enter the pond by a shallow shelf or is your pond deep sided? If deep sided they might have tried to grab the fish and just injured them.
 

IPA

Joined
Aug 9, 2017
Messages
402
Reaction score
248
Location
63b Chesapeake-Pamlico Lowlands and Tidal Marshes
Hardiness Zone
8a
Country
I recommend that you join koiphen.com and post to their emergency and health issues section. Post the symptoms and water test results in you request for emergency help as well as the treatment you already used.

Make sure to test the nitrite and post that here and there. Ammonia should be zero and nitrite can be just as harmful, more possibly, and needs to be ruled out.

I'd be guessing as much as you but here is a link with disease and symptoms that can help you narrow down the possibilities. Wait to start more treatments until an expert here or there can confirm the actual illness.

http://www.fishnet.org/sick-fish-chart.htm
 
Joined
Jun 11, 2012
Messages
6,902
Reaction score
6,984
Location
Water Valley, Alberta
Hardiness Zone
2a
Country
Check the colour of the gills.
Nitrite poisoning will show as brown coloured gills.

What was the original reason for dosing Knock Out?
What is filtration/water circulation/aeration?
KH/GH numbers would be useful to know.
 
Joined
Aug 30, 2016
Messages
295
Reaction score
529
Location
Utah
Hardiness Zone
5b
I think she said the dying started two weeks ago and the fish was added a week after.
 
A

Advertising

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top