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Fish dying

Discussion in 'Forum Issues' started by Birdy, Sep 28, 2016.

  1. Birdy

    Birdy New Member

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    Hi, I recently added about 20mil of iron chelate to my ap due to plants yellowing, about a week later my bacteria looked non existent and ph was through the roof. Lost 2 fish. Any tips what I did wrong


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  2. Yabbies4me

    Yabbies4me Administrator Staff Member

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    Hi Birdy, welcome.

    We are going to need a lot more information about your system, ie:

    - What size is your system, ie: Fish tank water volume, volume of wet gravel in grow bed/s, etc?
    - What operating method, ie: Siphoned Flood & Drain, Timed F&D, Constant Flood?
    - Water temp and pH?
    - Ammonia, Nitrite and Nitrate levels?
    - How old is the system?
    - What type of fish, how long have they been in and what size are they?
    - How much aeration is there in the system?

    Also, when you say you "added about 20mil of iron chelate", was it a liquid chelated Iron, or a powder? What sort of chelated Iron was it, ie: EDDHA, EDTA, DTPA?

    What do you mean when you say "my bacteria looked non existent"

    Cheers!
     
  3. Birdy

    Birdy New Member

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    Hi Yabbies

    Sorry ap is about 6-8 weeks old. I have a 800lt fish tank ibc and 4 200lt gb with a sumptank. I use bell siphon in gb. [​IMG]
    PH today is 8.8 with ammonia at 0ppm nitrite 0ppm and nitrate 0ppm. I have already drained 1/3 water from fish tank to lower ph with no change


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  4. Ringer

    Ringer Active Member

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    Hi birdy ,
    I have two questions. What Ph is the water before you add it to your system and what media are you using?
     
  5. Birdy

    Birdy New Member

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    Hi ringer, I didn't test it pre ap but in the first 5 weeks it was at a constant 7. I have lava rock in my beds.


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  6. Robert123

    Robert123 Active Member

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    So your pH was stable, then shot up after the iron add? And what exact iron chelate (brand / tradename / etc) did you add?

    Sounds strange. Most chelates are pH neutral or slightly acidic, but perhaps you might want to add a few drops of chelate to a water tube and test the pH then? Maybe you don't have what you think you have?
     
  7. Birdy

    Birdy New Member

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    Hi Robert it was the Yates brand and liquid form. That is the only change I can think of. Everything else has been running smoothly. What is a good solution to bring ph down? Have stopped feeing the fish . Oh and it is just 5 big gold fish I had to start with, down to three now


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  8. Robert123

    Robert123 Active Member

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    You can make a dilute solution with muractic can acid (HCl). Often you can get it from pool supply stores as "ph down" or something like that.

    Dilute it with water and add it slowly to the grow beds. Let it drop a couple times, measure pH again and do it again it necessary. Target a pH of 6.5 a 7.0.
     
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  9. Robert123

    Robert123 Active Member

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    Yates is typically ph 3.
     
  10. Ringer

    Ringer Active Member

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    Maybe sun dry some of your rock and try an acid test on it?
    Just to be sure it's not alkaline.
     
  11. Birdy

    Birdy New Member

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    Thanks for all your replies, I used a bit of pH down over three days and have reached a nice 7. All fish happy


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  12. Robert123

    Robert123 Active Member

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    Good to hear. Keep an eye on pH to see if it bounces back up on you.
     
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