Endo, all of these various companies use proprietary blends of bacteria, so exactly how one product measures up against another is impossible for me to say. One has to also keep in mind that when it comes to making claims such as controls a full-spectrum of pathogens including Ich, Aeromonas, and Vibrio, that may only be true for certain species of fish, kept in certain environmental conditions. As it relates to the vast amount of ornamental fish in this hobby, most of the science regarding pathogenic bacteria, and competitive exclusion, is still in its infancy.