Took a closer look at the calcium hardness test this morning, when it switches from red to blue. There are a bunch of floating red things in the tube.

If that's how it's supposed to look, fine, but I want to make sure something isn't going wrong with my chemicals.
Is that considered the blue" the test is calling for when it says the sample should change from red to blue?


If that's how it's supposed to look, fine, but I want to make sure something isn't going wrong with my chemicals.
Is that considered the blue" the test is calling for when it says the sample should change from red to blue?