Quote:
Originally Posted by Reef Pilot
I always mix close to the 3 min max. I find 2 min is not enough to dissolve all the colour mix.
What do you mean when you say you "use" the timer? Do you add the vial the 2nd time after mixing, and before pressing and holding the C2?
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Yep, exactly as the instructions indicated. The kit came with two vials and one gives me lower readings such as in the .15ppm range for my tank and 0.00ppm on my RO/DI water and the other vial gives me values in the .25ppm range and .04ppm in my RO/DI water. So I started using the one that gave me the lower values but even then the results have been wildly different. I haven't actually ran two tests back to back on my tank water yet but I am willing to bet that I'd get different numbers that exceed the +-4ppm accuracy.