reef color B ok to raise Potassium

[snaza]

Hi,

I tested my potassium and found it about 360. can i use color B to raise it? I dont have any problem with low boron though. I dont use any of there products, i just want to raise potassium. It is all they have at my LFS

cheers

[bertoni]

Does the container list the relative proportion of the elements? It probably would be okay.