Soaking Carbon

Discussion in 'Protein Skimmers, Mechanical Filtration' started by Tony, 28 Jun 2009.

  1. Tony

    Tony

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    I've been reading on the zeovit method of keeping corals and one of the things they recommend is placing GAC in boiling water for 24 hours and then adding it to the tank. This is supposed to remove phosphates in the carbon.

    So I decided to do this. I took my carbon, boiled RO water and added it to the carbon. I did a phosphate test with a red sea test kit after about twenty minutes and I got a result of more than 2ppm as the test doesn't go higher than this.

    The water was still hot at this stage and I thought it could have skewed the results, so I boiled more RO water, threw the original water out and added the fresh. This time I left it till it got cold before testing. The results were once again above 2ppm which is alarming as this is a reputable brand which I will not mention.

    Once again I threw out the old water and boiled more RO water and the test results were still too high so I added some lanthanum chloride to the water to trap the phosphates before adding it to my tank.

    In conclusion I had to change the water three times which still yielded high phosphate results so are we kidding ourselves when we add carbon to our system?
     
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  3. riyadhessa

    riyadhessa

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    Tony now i am confuse but i will tag alone and see what the others have to say...thank you for sharing your experiment with us...cause these stuff do not come cheap carbon.
     
  4. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Tony, most AC's on the market contain high level of phosphates. I know, lots of guys that also soak theres in order to reduce the phosphates. That is the reason why AC is placed in a reactor before P04 remover, this way the P04 remover pulls out what ever phosphates are contained in the carbon before it enters the system.
     
  5. Junz

    Junz

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    very interesting.

    is there a link to do this
     
  6. Tony

    Tony Thread Starter

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    If you download the Zeovit giude it will tell you what to do but it's pretty striaghtforward. Soak the GAC in 90 degree water for twenty four hours before using it in your tank. I will add to that and say change the water every few hours.
     
  7. Junz

    Junz

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    Thanks, i normally dont run PO4 remover, so this will help
     
  8. Tony

    Tony Thread Starter

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    Absolutely
     
  9. Warr7207

    Warr7207

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    Tony do you run Carbon all the time ?
     
  10. viper357

    viper357 Admin MASA Contributor

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    Is that Celsius or Fahrenheit? How do you keep the water at that temp for 24 hrs?

    Wouldn't it be safer to just use Purigen, doesn't that do the same job as carbon?
     
  11. brentnorm

    brentnorm

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    Yes it does do the same job as carbon and is a much safer bet. Purigen is much cheaper too.
     
  12. Tony

    Tony Thread Starter

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    Warren, yes I do. It's recommended for the zeovit method

    I'm not sure if it does the same
     
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