Aptus Peakboost, 1 LiterPEAKBOOST Phosphorus Booster About Peakboost Peakboost along with its sibling product Finaleboost makes up the Aptus flower development and bulking solution. Perhaps the most noticeable implementation of the Third Pillar of Aptus Philosophy: Mineral Antagonism, Peakboost moves the vast majority of phosphorous used during the bloom cycle solely into one product. With this formulation, Aptus has allowed for absolute control of heightened phosphorus