Here is a typical report from ICP and what needed to be added when using FM Balling Light:What deficiency did you have except Potassium and Sulphur?
And now, using Classic version, do you dose the same or different quantities of each solution?
Unfortunately now I have extensive collection of bottles and my wife thinks I am into some illegal activities .
So for last 5 months I been using TM Original Balling method and using Tropic Marin A and K trace elements that Randy suggested.
I dose the TM A and K at minimum suggest dose 1ml per 100L (going by memory).
I have not done ICP in last 5 months but planning to do one sometime soon. Corals are doing ok so I have no reason to be concerned.
Good luck,