Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Unhealthy Fish
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 09-17-2014, 06:08 PM   #1
Aquarium Advice Addict
 
dalto's Avatar
 
Join Date: Jul 2006
Location: Texas
Posts: 2,104
Fish deaths and what to do next

So...I have an interesting situation.

Last weekend I finally got water in my first large tank.

I went and picked up a few fish. 6 2" Uaru amphiacanthoides. I acclimated them fairly slowly over the course of an hour and a half. I did this by placing the water from the fish bag in a large breeder box. The box was partially submerged in the tank water and I added tank water to the breeder box incrementally over the course of 90 minutes. After being added to the main tank I monitored them off an on for about 10 hours before going to bed. The fish were active and alert and showed no signs of distress.

When I woke up the next morning they were all dead. The tank is not cycled but 6 2" fish put a virtually non-existent bioload on a 200g tank. There was not enough ammonia to register on the API test kit.

My water is reconstituted RO/DI that is soft and acidic. ph 6.0, KH 3, GH 4, Temp 80F. Filtration is provided by two Eheim 2080's with extended spray bars providing quite a bit of surface agitation.

So, I have only been able to come up with a couple of things that could have killed them.
  • Osmotic stress/shock from being moved from harder water to softer water even though they were acclimated pretty slowly.
  • Some type of chemical in the tank.
I am trying to decide what to do next. My biggest issue is that I have no real way to test for the presence of a foreign substance. The only thing I can think of to do is buy a couple of hardy fish and see if they survive. I would prefer a solution that didn't risk the fish but nothing is coming to mind.


Thoughts?
__________________

__________________
dalto is offline   Reply With Quote
Old 09-18-2014, 05:56 AM   #2
AA Member
Community Moderator
 
Delapool's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2013
Location: Perth, Australia
Posts: 16,261
Do you know if the lfs had them for very long?

I can't think of much else as I assume from your profile you would of set these up before. Bit of a shock to lose them! Nothing changed over-night?

I would try that as well and get some hardy fish (preferably ones you want to keep imo).
__________________

__________________
Delapool is offline   Reply With Quote
Old 09-18-2014, 10:58 AM   #3
Aquarium Advice Addict
 
dalto's Avatar
 
Join Date: Jul 2006
Location: Texas
Posts: 2,104
Quote:
Originally Posted by Delapool View Post
Do you know if the lfs had them for very long?
I am not sure how long but more than a week. It was an LFS I don't go to very much. I located them and then went back later.

Quote:
Originally Posted by Delapool View Post
I would try that as well and get some hardy fish (preferably ones you want to keep imo).
Yeah, I picked up some young CB "G" brasiliensis from the LFS I typically use. They keep their SA fish in much softer water and those fish are quite hardy so we will see what happens. Probably not long term keepers but I should be able to grow them out a bit before they get too rowdy. I am not looking forward to chasing them around a 6ft tank though :|
__________________
dalto is offline   Reply With Quote
Old 09-18-2014, 11:17 AM   #4
Aquarium Advice Addict

POTM Champion
 
Join Date: Apr 2014
Location: Southern Cali
Posts: 1,734
Quote:
Originally Posted by dalto View Post
  • Osmotic stress/shock from being moved from harder water to softer water even though they were acclimated pretty slowly.
  • Some type of chemical in the tank.
I am trying to decide what to do next. My biggest issue is that I have no real way to test for the presence of a foreign substance. The only thing I can think of to do is buy a couple of hardy fish and see if they survive. I would prefer a solution that didn't risk the fish but nothing is coming to mind.


Thoughts?
That's really bites! I hate it when you finally find something you have been looking for and then something like this happens. I recently came across some marble hatchets and snatched up 9 total, of which sadly only three remain. I should have known better as about 25% of the batch at the lfs had obvious genetic "errors" and I should have passed, but you guys know how it is.

You could add carbon if not using it already to remove any suspected toxins, but I think it may be the first reason you listed.
Did you by chance test the ph and hardness of the water the lfs had them in?
If the lfs water was up near 8 or higher in ph and related hardness, you may have to approach it differently.

I think one approach to avoid the same thing happening is to test the water the lfs keeps them in and adjust your tank to closely match those parameters, then after the fish have been introduced and are settled in your tank, gradually adjust the parameters to the levels you want to maintain them at.
__________________
PB_Smith is offline   Reply With Quote
Old 09-18-2014, 12:31 PM   #5
Aquarium Advice Addict
 
dalto's Avatar
 
Join Date: Jul 2006
Location: Texas
Posts: 2,104
Quote:
Originally Posted by PB_Smith View Post
Did you by chance test the ph and hardness of the water the lfs had them in?
If the lfs water was up near 8 or higher in ph and related hardness, you may have to approach it differently.
I didn't test it but after they died I wished I had.

Quote:
Originally Posted by PB_Smith View Post
I think one approach to avoid the same thing happening is to test the water the lfs keeps them in and adjust your tank to closely match those parameters, then after the fish have been introduced and are settled in your tank, gradually adjust the parameters to the levels you want to maintain them at.
Yeah, if I get any more fish from there I probably will need to test the water and see what is going on then make a plan.
__________________
dalto is offline   Reply With Quote
Old 09-18-2014, 10:38 PM   #6
AA Member
Community Moderator
 
Delapool's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2013
Location: Perth, Australia
Posts: 16,261
This is out of interest but could say ph have fallen further at night? And even though they looked ok by day, this upset them too much?

I totally agree with the lfs water testing, I'm just curious as alas I don't get to set up many new tanks (not counting queries on how much work it would be to shift a 4ft tank half a foot further along the wall).
__________________
Delapool is offline   Reply With Quote
Old 09-18-2014, 11:24 PM   #7
Aquarium Advice Addict
 
dalto's Avatar
 
Join Date: Jul 2006
Location: Texas
Posts: 2,104
Quote:
Originally Posted by Delapool View Post
This is out of interest but could say ph have fallen further at night? And even though they looked ok by day, this upset them too much?
pH is pretty steady in that tank. Not much to effect it.
__________________
dalto is offline   Reply With Quote
Old 09-18-2014, 11:33 PM   #8
AA Member
Community Moderator
 
Delapool's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2013
Location: Perth, Australia
Posts: 16,261
Ok, no worries. Thanks for the info.
__________________
Delapool is offline   Reply With Quote
Old 09-21-2014, 01:28 AM   #9
Aquarium Advice Addict
 
dalto's Avatar
 
Join Date: Jul 2006
Location: Texas
Posts: 2,104
Well, the brasiliensis are doing fine. So I guess there is nothing wrong with my tank.

Must have been the acclimation after all.
__________________

__________________
dalto is offline   Reply With Quote
Reply

Tags
death, deaths, eat, fish, fish death

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mysterious deaths of fish and plants looking terrible YourPalCM Freshwater & Brackish - Unhealthy Fish 2 04-14-2007 10:09 AM
Awkward Guppy Behavior and Deaths unknown_7 Freshwater & Brackish - Unhealthy Fish 6 01-11-2006 06:33 PM
Algae and Deaths thesuthern1 Saltwater & Reef - Sick Fish or Coral 6 10-10-2005 09:36 AM
Shrimp Deaths and Question johnkristie Saltwater & Reef - Sick Fish or Coral 21 07-07-2004 12:02 AM
Oh! Oh! Me Next! Me Next! Punkfarter Saltwater & Reef - Getting Started 5 06-19-2003 05:18 PM







» Photo Contest Winners







All times are GMT -4. The time now is 09:15 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.