New Adult Peacock Died After 6 Days

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AKKADIAN

Black Skirt Tetra
MFK Member
Feb 18, 2018
38
20
13
38
Have you tested your water?
Yes
If yes, what is your ammonia?
0
If yes, what is your nitrite?
0
If yes, what is your nitrate?
40
If I did not test my water...
  1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.
Do you do water changes?
Yes
If I do not change my water...
  1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
Hi. I’m feeling pretty gutted right about now....and I’m looking for some answers.

Six (6) days ago I bought an adult peacock off another fish keeper (i.e. not a shop, but possibly not a breeder either). The fish was seemingly in good condition - decent finnage, no scales missing, etc.

I added the fish to my tank, taking all the proper precautions and acclimatising correctly, etc. But he just did not seem to “fit in”.
My biggest concern right from the start was he didn’t show any sort of interest in food at any time.

I have a six foot tank, with other African cichlids of similar size or smaller.
pH = 7.4 to 7.6
Ammonia = 0
Nitrite = 0
Nitrate =
Well oxygenated.



everything was seemingly done correctly.

I had recently added two yellow labs, and they are doing perfectly fine.

I know sometimes fish just die, stress of a move can kill an otherwise healthy fish. I’m just looking for answers...Any sort of opinions
 
Did you quarantine the fish and observe it's behavior prior to adding it to you main tank? Doesn't sound like you really know who you got the fish from, and other then looks of the fish at the time of purchase really don't know alot about the fish or seller. Risky. Did you inquire from the seller on their water parameters? Possibly drastically different hardness and pH? Could have been sick, internal parasite maybe? Really to many options and not enough to go off of to tell you what probably have happened. Mbuna and peacocks are not a good african mix usually.
Sorry for your loss. Hopefully it didn't infect the rest of your fish if it was ill.
 
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Did you measure the total dissolved solid (TDS) level of the tank the peacock came in versus yours? I know the 2 yellow labs did fine, but if the yellow labs came from a different person than the peacock, there's always the issue that the former owner of the peacock a much different set of TDS parameters than yours. Going from a higher to lower TDS can cause osmotic shock, and if the difference is like 200ppm, an acclimation period of a few days may be warranted. I'm not comfortable with more than a lowering of 50ppm TDS in 1 day.
 
What other fish were there? African cichlids, especially mbuna, like to kill each other.
 
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