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ph level to high and fat goldfish


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  • Regular Member

Hi all

I am new to this site and have a problem with my goldfish they are getting fat - looks like Dropsy but isn't.

The Ph level is around 7.6 could be higher but this is the largest reading on the test strip.

I have lost 2 fish already and don't want to lose anymore. I have tried the peas which have not helped and vinegar to lower PH but this has not happened.

please help

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  • Regular Member

:hi and welcome.


Goldfish can tolerate a wide range of pH levels.  The lowest I would keep them is 7 but they do well in water in the low to mid 8s, I think even close to 9.  My tank runs at 8.2 and I've kept GF for about 12 years. :D  I would not try and lower it with vinegar. 


I'm going to move this thread to the Diagnosis and Discussion section.  I will then copy and paste a form for you to fill out to the best of your ability. 


Finally, if you are able to upload a picture or 2 of your GF it would be very helpful.  You can do so using a photo hosting website such as photobucker or imgur.  :D



Here is the form:



  • Test Results for the Following:
    • * Ammonia Level(Tank)
    • * Nitrite Level(Tank)
    • * Nitrate level(Tank)
    • * Ammonia Level(Tap)
    • * Nitrite Level(Tap)
    • * Nitrate level(Tap)
    • * Ph Level, Tank (If possible, KH, GH and chloramines)
    • * Ph Level, Tap (If possible, KH, GH and chloramines)
    • Other Required Info:
      • * Brand of test-kit used and whether strips or drops?
      • * Water temperature?
      • * Tank size (how many gals.) and how long has it been running?
      • * What is the name and "size of the filter"(s)?
      • * How often do you change the water and how much?
  • * How many days ago was the last water change and how much did you change?
  • * How many fish in the tank and their size?
  • * What kind of water additives or conditioners?
  • * What do you feed your fish and how often?
  • * Any new fish added to the tank?
  • * Any medications added to the tank?
  • * List entire medication/treatment history for fish and tank. Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.
  • * Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus?
  • * Any unusual behavior like staying at the bottom, not eating, etc.?
Edited by fantailfan1
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  • Regular Member

Yes Goldfish do better at higher ph levels and are less likely to have disease complications.  They also like harder water, something that is often overlooked.  12-18 dh (210-320 ppm hardness) is good for them.


Sudden drops in ph (from adding vinegar) can be very stressful on your fish- I don't recommend doing this.

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