Water Change Warning - Cape Town

Discussion in 'General Aquatic Talk' started by heliophyla, Sep 27, 2013.

  1. heliophyla
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    heliophyla Noob

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    Hello

    I did a water change on Wednesday and some of my fish have been dying since then. I've lost an SAE and a few Endlers.

    I treated the water with Prime, matched the temperature etc. Everything the way I normally do. I'm in Cape Town near Century City.

    Maybe just be careful.

    regards
    Tamarinda
     
  2. wolf
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    wolf Valued Contributor

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    Did my wc on Tuesday also prime, and all seems good.
    In table view
     
  3. Greystoke
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    Greystoke Specialist

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    Had the same problem in PE about a year ago. These "water"guys make mistakes sometimes. So yes: Be careful
     
  4. Mastermamo
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    Mastermamo Algae harvester

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    Did you age your water or did you just add in straight from tap?
     
  5. tyronegenade
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    tyronegenade Specialist

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    How large was the water change?

    There has been a lot of rain in CT and this may have diluted the dissolved solids (TDS) a great deal. This lack of hardness would also make the water very sensitive to pH swings.

    Fish can withstand up to a 50% change in TDS but there after their gill-cells begin to pop. This is often mistaken for ammonia toxicity... But, if you are suffering large pH swings it could be ammonia toxicity. Ammonia accumulates as ammonium at low pH and then with a water change of high pH all that ammonia is released to cause havoc. Prime does neutralize ammonia but this is a chemical reaction which is concentration dependent: not enough Prime and not enough ammonia is neutralized. IF you did a big water change, you may have caused an explosion of ammonia or given your fish a TDS shock.

    There is no way to avoid this other than to test your pH, TDS and ammonia levels before a water change. Both problems could be solved by adding some tea to the water. This boosts the TDS and the phenolics in the tea will react with ammonium.
     
  6. Luis Embalo
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    Luis Embalo Valued Contributor

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    Great tip.. Roiboos, or any other tea?
     
  7. Mastermamo
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    Mastermamo Algae harvester

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  8. heliophyla
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    heliophyla Noob

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    It was a 50% water change and the water wasn't aged.

    I agree, adding tea is a great tip. How much tea would one add. If one adds too much tea isn't there a risk of raising the TDS too much.

    The answer is obviously to get a test kit, then I can measure how much tea to add.

    Fortunately the rest of the fish look fine.

    regards
    Tamarinda
     
  9. epiphysis
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    epiphysis Green fingers

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    Rooibos. NO other tea or your fish might get wings from the caffeine. We are lucky enough to get rooibos at every shop. I believe the guys overseas are not so lucky. Its concidered a 'healthshop luxury' in some places.

    I add Rooibos to boost the fishe's immune system. Around 1 bag for every 50l tank water. But I think you can get away with 1 bag for every 100l. Then the water won't be so dark.

    Just a note, tea will be removed by carbon and purigen.
     
  10. Luis Embalo
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    Luis Embalo Valued Contributor

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    Rooibos and Zambuck.. good for everything it seems.. :)
     
  11. Mastermamo
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    Mastermamo Algae harvester

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    You learn something new everyday
     
  12. Joshua Tree
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    Joshua Tree Valued Contributor

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    Do tell? :icon_study: I know and use Rooibos but what are you using Zambuck for :scratch:?
     
  13. Luis Embalo
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    Luis Embalo Valued Contributor

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    For everything.. :) like mosquito bites, bumps and bruises, etc.. not necessarily related to aquariums.. :) but you know.. everything else.. :)
     
  14. tyronegenade
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    tyronegenade Specialist

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    I have used Ceylon and Rooibos without issues. The Ceylon seems to help for spawning.

    The down side is that the tea will stain the water...

    But more seriously, if you now your pH crashes between water changes you have to be careful about post-water change ammonia spikes. during heavy rain you have to worry about TDS swings. But, that said, it could be there was some or other detergent in the buckets etc...
     

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