ICP test analysis action recommendations

Discussion in 'Reef Chemistry by Randy Holmes-Farley' started by lakereef, Feb 7, 2018.

  1. lakereef

    lakereef Active Member

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    I have had a few issues with my 3 year old reef. I'd say 90% of the coral are fine but I've seen some RTN of random coral starting this summer. I initially thought it could be low Nitrate levels, but I'm not convinced that's all so I ordered a ICP test. I'm using Kent salt and have since the tank was started. I was doing 50g (of 700 total water volume) of water change weekly until I started to seemly have more issues after the water change. Now I do maybe half that.

    I noticed Boron is low, but it was in a Triton test I did a year back so I don't think this is an issue.

    The one I'm worried about is Molybdenum being zero as it had some level with a previous Triton test. Could this be completely depleted by my large coral load? The tank is absolutely packed with coral and macro algae in an attached fuge. Is this something I can dose safely despite not being able to test on my own?

    Anything else I should be concerned about with these ICP results?
    Tank Report 1-26-2018 3_29_41 PM.jpg
    Tank Report 1-26-2018 3_29_41 PM[2].jpg
     

  2. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    I don’t have high confidence in his company, but it is possible you could benefit from some trace elements. I’d get a mix of of them if you want to try that.

    Potassium seems high.
     
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  3. lakereef

    lakereef Active Member

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    Ok thanks for the reply. I haven’t dosed any potassium so that would be from the salt mix.

    I have some Fauna Marin trace elements laying around and their blue/purple complex has B and Mo. I was tempted to try that since they both seemed lacking. It also has a couple others I can’t think of off the top of my head and was a bit worried those would get too high. Something to worry about or no?
     
  4. SirensReef

    SirensReef Member

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    Actually, I really Love ICP-Analysis! I’ve had great luck dosing my trace elements using their testing!!! I use the results to enter my levels into the ReefGrow dose builder and tells me exactly how much of their trace elements to dose, which are amazing btw, and BAM incredible coral growth!!!
     
  5. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    Well, I'd just caution to read these threads before accepting all the values, since you have no independent way to know if they are accurate:

    https://www.reef2reef.com/threads/did-i-pick-the-wrong-icp-testing-company.339369

    https://www.reef2reef.com/threads/icp-testing.293632/page-4#post-4267686
     
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  6. lakereef

    lakereef Active Member

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    Okay I get the sense you don't have much faith this company. That's fine but my Triton test that I did a year ago at least looks similar. Molybdenum was low in that previous test, but not zero like this one. I think I'd like to try dosing that one at least a little bit if I can find a way to add it without impacting others. After looking closer at the Fauna Marin bottle it has elements in it I don't want to impact.

    Do you have a recommended way to increase Molybdenum?
     
  7. Shigshwa

    Shigshwa Active Member

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    I visit the very store where they do the testing here in Colorado, and the owner of the store seems to be a knowledgeable guy. I hope that it's not an issue with their testing procedures or their machine, because I do notice that they always read my calcium low, among other important elements.
     
  8. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    Molybdenum was not the only zero trace element (manganese and zinc and iron (although iron should typically be undetectable but also may be too low), for example), which is why I suggested a mix, but it is certainly fine to experiment one at a time and more easily see what is a benefit.

    Triton likely has a supplement for molybdenum only, and the last couple of posts in this thread give DIY molybdenum and manganese recipes:

    https://www.reef2reef.com/threads/post-your-diy-additives-here.344149/
     
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  9. lakereef

    lakereef Active Member

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    Thanks for the help.

    I have tried dosing iron in the past as I know you do. I think I overdosed eventually as I had some issues but it did help the macro algae substantially.
     
  10. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    You're welcome.

    If you dose, let us know what you observe. :)
     
  11. coralseas

    coralseas Active Member

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    Randy. I would love your input on a thread I started the other day. I’ll be posting more info on it in a few minutes
     
  12. Ashish Patel

    Ashish Patel Valuable Member

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    I just got my ICP results from the same place. I noticed your SR is high compared to mine and your Iodine is low. I dose potassium iodine but waited until these results to start dosing SR. Are you dosing SR and Potassium? I started of with instant ocean but over the past 3 month i've turned over 80% of the water with fritz.
    Also, my Al is on the high side and I believe it could be the marinepure block. Few of the things that shocked me was the reading on the MG. I tested it at 1520 day before sending the sample.
    What was your Mg levels in comparison to the test results?

    Im not going to take any drastic actions since my tank is doing very good but glad I know that i have to reduce iodine dosing, slowly replace the marinepure with other bio media, and dose enough SR to get me around 8-10. I still have to review my test results carefully but hope this helps.

    Screenshot_2018-02-09-14-18-59.png
     
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