Copper test kits

Discussion in 'Fish Disease Treatment and Diagnosis' started by Humblefish, Jul 20, 2016.

  1. chicago

    chicago Well-Known Member

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    i have some wrasses and a clarion angel in 1.99 and they are eating and doing well.. Nice to have the Hana .. it is for a sure a game changer..
     
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  2. HotRocks

    HotRocks Fish Fanatic! Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Reef Tank 365 Article Contributor Expert Contributor Build Thread Contributor

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    Agree! loving it!
     
  3. Balz3352

    Balz3352 Active Member

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    Using coppersafe and api. What level would you give this. [​IMG]
     
  4. solitude127

    solitude127 Well-Known Member R2R Supporter

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    Really hard to tell because the camera might capture a different color. Also API test color should be determined in indirect sunlight
     
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  5. dwest

    dwest Valuable Member R2R Supporter R2R Excellence Award

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    It’s been a while since I used api, but aren’t you supposed to look from the top of the tube through the bottom?
     
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  6. Humblefish

    Humblefish Valuable Member R2R Supporter R2R Excellence Award Expert Contributor Moderator Emeritus

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    ^^ Yes, with the white part of the card on the bottom.
     
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  7. dwest

    dwest Valuable Member R2R Supporter R2R Excellence Award

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    Honored.... I am a big fan of yours!
     
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  8. Balz3352

    Balz3352 Active Member

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    Well shoot. Shows how mich I read directions. Im just gonna buy a hanna and take the guessing out of it.
     
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  9. dwest

    dwest Valuable Member R2R Supporter R2R Excellence Award

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    Been using my Hanna for the past few weeks. You will be happy.
     
  10. SeaJay

    SeaJay Active Member

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    I got my Hanna Copper Checker on Wednesday. I will never use anything else again. Everything you may have read about how terrible the API copper test kit is, is an understatement. I lost a cinnamon clown, and have another fish struggling to recover from a copper overdose due to using the API kit & this being my first foray into copper treatment. Unfortunately it was all my LFS had on hand and I had to get treatment started.
     
    Last edited: Nov 2, 2018
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  11. mjreefs

    mjreefs Active Member

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    Hi. I got my Hanna Checker recently and I tested for copper in my QT. At first it read at 0.32 then a second test immediately after revealed it to be at 0.25. Is it safe to assume that I have a copper level of around 0.27-0.3? Using Cupramine btw
     
  12. Brew12

    Brew12 Electrical Gru Staff Member Team R2R R2R Supporter R2R Excellence Award Reef Squad Leader Partner Member 2019 Reef Tank 365 Article Contributor Build Thread Contributor North Alabama Reef Club

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    Probably, but I normally don't see that big of a fluctuation with my copper checker. Are you sure you are getting it very clean and have the 10ml mark facing forward each time?
     
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  13. HotRocks

    HotRocks Fish Fanatic! Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Reef Tank 365 Article Contributor Expert Contributor Build Thread Contributor

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    +1 also make sure you get ALL of the reagent into the cuvette.

    There is a slight learning curve when you start using the checker.
     
  14. bigcheese

    bigcheese Member

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    I know I'm replying to a year-old post and know precisely zilch about aquariums compared to @Humblefish, but I do know my chemistry.
    TL;DR: Notice the concave shape where the water curves up toward the sides of the glass and droops in the middle... it's called the meniscus. When you read a test tube (or graduated cylinder / pipette / etc.) you read it at the bottom of the meniscus*, not the top.

    I verified the API tubes have the white line printed so the top corresponds with the marked graduation, so the bottom of the meniscus should just touch the white line for a precise measure. @solitude127's pic is spot on 5mL.
    Hopefully someone reading this thread a year from now can find this useful.

    *Super Nerd Stuff: There are some liquids that make a convex meniscus, mercury thermometers being one example. It's 'more scientifically rigorous' to state that you'd read the center of the meniscus, but we're all looking at water here. Also of note is TDS and temperature have an effect on the surface tension, which causes the meniscus to differ in height... lab grade equipment is often specifically graduated for certain temperature ranges or chemicals because of this. Fortunately, it's so minimal of a difference between SW and RODI or 60F and 80F that it's dwarfed by the (in)accuracy of any test kit we can get our hands on.
     
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  15. bigcheese

    bigcheese Member

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    Edit.. no idea why that posted twice.
     
    Last edited: Feb 5, 2019
  16. gobble

    gobble Active Member

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    Why do you say the Seachem kit won't work for Copper Power? The kit says it works on chelated copper and my first measurement at 1.0 seemed accurate.

    I don't want to kill my gem tang so if I need a Hanna checker I'll go buy it. But isn't my seachem kit ok?
     
  17. 4FordFamily

    4FordFamily Tang, Angel, & Wrasse Addict Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Article Contributor Expert Contributor Hospitality Award Build Thread Contributor

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    All of the color kits are pretty inaccurate. Seachem kit is specifically designed to be more accurate for cupramine, their copper product. This is ionic copper with a useful range below 1.0.

    In truth none of those kits come close to a Hanna checker and I’d highly recommend it for all copper.
     
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  18. JMM744

    JMM744 Well-Known Member R2R Supporter Partner Member 2019 Build Thread Contributor

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    This is so true. It’s an investment in a much more accurate tool. I tried the way you are doing it but my readings were way off. Actually higher then was necessary. My last qt I ran at 1.85 give or take .05 and was easily able to hold that with the Hanna tester. On the 3 rd. day I dropped to 1.52 which I could have never read with another tester.
    Hope your gem tank sails thru the qt process. Beautiful fish.
     
  19. gobble

    gobble Active Member

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    Order a Hanna Checker from BRS today. Thanks.
     
  20. gobble

    gobble Active Member

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    The spots are on my glass, not the fish.

    IMG_0803.jpg
     
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