I really do not think it's something I can quantify Vaughn.
I can compare it to SeaChem and Tropica, it's a little better than either.
It has less copper than TMG, so shrimp folks will be good.
I've gone nuts and dosed 3-4x the normal amounts without any issues.
So 300-400% past max demand at high light.
That was with CRS's and Cardinals, both fairly sensitive to metals, both grew well over time and the CRS's bred.
It's nice to have a dry formulation, less storage and shipping issues.
It's far cheaper 1-15X cheaper than SeaChem, about 15X less than TMG.
Imagine getting 5 liters of TMG for 7$ a jug and paying 4$ to have it shipped?
Not bad............
Regards,
Tom Barr