Red Sea Potassium Pro (K) Test Kit

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Red Sea Potassium Pro (K) Test Kit

SKU: 207095
11 Review(s)

reg. $52.99

Special Price: $45.04

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  • Awful Test Kit By on 6/26/2017

    Bought this kit and color is very hard to determine. Also, I am using the Salifert test kit and that kit gives me a reading each time of 440 and the Red Sea gives me a reading of 340. What gives!
  • Does not work By on 5/30/2017

    I have run the test a few times now, which is long, and I have never seen the end point color change. I watched the red sea video and they obtained a blue color which does not happen when I test.
  • it takes a lot of practice By on 12/30/2016

    reagent D will crystalize if the temperature drops below about 65 degrees but will go back to solution if you gently warm it. do not look at the change in color using sunlight. use a white florescent light in a dark room and hold the vial close to the light as you drip the reagent. the color doesn't change much so what you are looking for is a change from purple to a milky looking blue. the key to the change is the milky blue.....
  • Can't detect color change By on 2/25/2016

    I purchased the Reef Colors Pro Multi Test. Good luck trying to notice the color change with the Potassium. Could have used the money on something else. Test is useless. I expect more from Red Sea.
  • Color change is EXTREMELY difficult to see By on 2/24/2016

    The color change isn't so much of an actual change in the color of the liquid like other tests where it goes from clearly blue to clearly red. Its so subtle that if you blink at the worng moment you will miss it becuase the before and after colors are so similiar. Its more like a "flash" of color when it changes. I'm getting better at noticing it after running the test a few times (its a long one so the learning curve takes some real patience) but like I said if you blink or lose focus at the wrong second you will miss the "change." A really bright light source helps a bit.
  • impossible to detect color By on 1/18/2016

    I am not color blind, infact i have a very good vision and i compliments about it. But this test is impossible to detect change in color during titration. If anyone wants my kit, take it.
  • Good product but hard to use By on 2/4/2015

    I also find it very difficult to detect the color change. I'm not sure when it's "blue enough". The color you see depends on the lighting where you do the test. Maybe I can take a picture of it and compare the colors in the image.
  • useless By on 1/11/2015

    Absolutely impossible for me to detect the titration color change.
  • Crystalized titrant By on 12/7/2014

    This is the second time Bottle D has crystalized and become unusable. My first test kit arrived crystalized and the second test kit crystalized after just 2 tests. I kept everything contaminant free. Will never purchase again.
  • Very accurate By on 8/1/2011

    it's not the easiest, and short BUT very accurate.
    I checked with a lab standard solution.
    and got +5 PPM.