Red Sea Test Kit Not Turning Color It's Supposed To

[Dark_Knightt]

I just received my Red Sea Pro Foundation Test kit, with tests for Mg, Alk, and Ca. I've done the Ca test and it didn't get to the blue it was supposed to get too, but a lighter blue, if it were darker it would have been the color I needed. What do I do if its lighter than it should be and I have used the 1ml of Pro reagant?
Im new to the whole titration testing.
#reefsquad thank you

 

[TheDragonsReef]

As long as it shifted colors and it's a solid color that's what you want. Different lighting may also make it look different. If I remember it right it goes from red to blue correct? So a light blue would be ok

 

[FishyFishFish]

It's in the instructions

Using more than the 1ml syringe means that Ca is above 500ppm (which would be pretty high). The instructions say to refill the syringe and continue to add until you get the correct colour. Add 5ppm to the total for every extra 0.01 ml you use.

It's probably not a factor if you have the whole kit, but I only bought the Ca test. The instructions that come with it covered all three of the foundation tests so I initially started using the instructions for the Mg test, which didn't work out so well!

 

[Dark_Knightt]

As long as it shifted colors and it's a solid color that's what you want. Different lighting may also make it look different. If I remember it right it goes from red to blue correct? So a light blue would be ok

Yes it went from a bright pink to a blue, and it did so when I had about .10ml left in the syringe, so I think that means my Ca is good.