I personally think so. However, I have a 30 gallon, ADHI fuge, classic 110 space saver skimmer, a lot of LPS (shrooms,ricordia,green toadstool,Duncans Scans,etc.)
And the calcium is higer in concentrations in the Fritz mix, I don't have the upload to use it very quickly. Therefore, that would and be the only thing for me personally. If you have more of a mix of SPS, LPS and elevated use of calc, you would benefit from the FRITZ Pro.