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- Dec 16, 2019
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Thank you yes that’s as green as it gets then it goes Into yellow over dose .Quite the conundrum.
I don't think you need another test, just retest with what you have. Regarding the Hanna, how old is the reagent? Although in my experience older reagent shows a lower result.
Is that green as dark as the Red Sea kit goes? With Salifert, I go until the color changes, then I note what the level was. Then I continue and see if the color gets darker. Note that reading and keep adding titrant one drop at a time, until I do not notice the color changing. Generally a drop or two.
I'm inclined to trust the Hanna and Salifert, but would retest.
For what parameter?Thank you yes that’s as green as it gets then it goes Into yellow over dose .
i think I should to an ICP test
ThisI think that you'll drive yourself nuts with that many different tests. I would pick your favorite and keep your tank alk stable according to that.
I don't see the different values to be that worrisome. You have 4 tests with an average of 10.5 dKH and a standard deviation of 0.8. So 10.5 +/- 0.8. That's reasonable
Thank you yes that’s as green as it gets then it goes Into yellow over dose .
i think I should to an ICP test
Great tool. I will also try it out. Thank you.If you are worried about it get some Multi Reference solution by Fauna Marin and check your test with that. I got some to check my checker and the Hanna alkalinity tester was 6.6 which is what the reference is suppose to read. There is 100ml of solution. Most tester use 10ml so my guess is you can get 9 test per bottle. It has known values for calcium, magnesium, potassium, salinity, alkalinity, strontium, nitrate and phosphate.
If you are worried about it get some Multi Reference solution by Fauna Marin and check your test with that. I got some to check my checker and the Hanna alkalinity tester was 6.6 which is what the reference is suppose to read. There is 100ml of solution. Most tester use 10ml so my guess is you can get 9 test per bottle. It has known values for calcium, magnesium, potassium, salinity, alkalinity, strontium, nitrate and phosphate.
I usually use the percentage of difference to adjust the readings. But most of mine were not that far off. I had a old packet of phosphate reagent so I also used that on a second reading with my phosphate meter and it was off even more the opposite direction so also if you get a reading that is too far off in may be a good idea to try a new batch of reagent with the reference solution. Here was my results on my tester or test kits.A known reference is a good suggestion. I should either DIY some or get a kit like that. Though is there a way to calibrate different tests if you find that the results aren't accurate?