Red Sea Potassium test kit and red sea ABCD

[Joeganja]

Okay so someone help me out with this. I test the Red Sea iodine, potassium, and iron. My iodine levels are fine, same with iron but my potassium always is low. Now I don't use Red Sea salt or dose any Red Sea calcium, magnesium, or alkalinity or anything that's in the Red Sea line except for the ABCD colors only based on what my iodine, iron, and potassium levels are. I use seachem reef salt and I just want to know why would my potassium levels be so low that I have to double to amount of reagent I have to add to even show up the color on the vial that's on the chart?

 

[JimWelsh]

I'm not sure if this is relevant or not, but I think it has the potential to be relevant, so I'll post it, just in case it is helpful: potassium test

 

[blacktippr]

Get the salifert test kit for Potasium , you will never test again with Red Sea.