Decent Mineral Mix 16/8 (2:1 ratio)

[Taffy]

You can get the testing done at CSU in Ft. Collins. They have information about all of the diagnostic things they do on their website.

http://csu-cvmbs.colostate.edu/vdl/Pages/default.aspx

It's excellent the company is Colorado based. You should get better products if they are made for your area.