I did a little label reading on the fertilizers I have and only the Miracle Grow has minerals Fe, Zn, Cu, Mn, Mo. It does not have Calcium, Magnesium or nickel which according to Brent Walston in his fertilization article, the plants do need, albeit a very small amount. The osmocote, Fish emulsion and 0-10-10 have no minerals. I read in a couple of bonsai books about using "Trace Element Frit" once a year. My local nursery does not carry it. Has anyone heard of this
Melissa