Massboost
Bud Booster
Massboost is a highly concentrated organo-mineral Calmag that contains calcium, magnesium, nitrogen, sulphur and L-amino acids to support healthy, vigorous growth through both veg and flower. Massboost is the calmag of choice for indoor and outdoor coco, peat and soil growers in run-to-waste systems.
For cultivators running hydroponic, DWC, recirculating or fertigation systems, use APTUS’ Mineral-Calmag. *add hyperlink to mineral-calmag
Organo-mineral calmag & bud booster
Application - Root drench and foliar spray
Available Sizes
Feed Programs
Feeding Type and Amount
Clones & seedlings
0.25 ml per 1L
Regular feeding (vegetative)
0.25 – 0.33 ml per 1L
Regular feeding (flowering)
0.25 – 0.5 ml per 1L
Foliar spray (maintenance)
2 ml per 1L
Foliar spray (repair)
4 ml per 1L
Add MASSBOOST to your reservoir every feeding as per feed schedule. If using MASSBOOST as a bud booster additive with another regime, add 0.5 ml per 1L in weeks 3, 5 and 7 of the flowering phase. When mixing with any phosphorus supplements (PEAKBOOST or mineral fertilisers), be sure to mix one into the solution before adding the other to minimise the chance of forming calcium-phosphate bonds which render both unavailable to the plant.
Calcium largely comprises the cell walls of plant cells which gives them structure. An uninterrupted supply of calcium allows for stout flowers, stems, leaves and the continued healthy formation of new plant tissue.
It is important to have available calcium to prevent blossom end rot, dropped flowering sites and necrosis of leaf tissue.
Chelated magnesium allows for optimal supply to enzymes in the plant which require the element to perform their tasks properly.
Magnesium is the central core of the chlorophyll molecule. A chelated supply allows for continued robust chlorophyll development allowing the plant to perform photosynthesis at optimal levels.
MASSBOOST is an organo-mineral plant booster that prevents calcium (Ca) and magnesium (Mg) deficiencies while stimulating powerful fruit set and development.
Provides organic nitrogen from L amino acids that stimulate plant development.
High bioavailability, 100% water soluble and leaves no residue.
Combines calcium (Ca) and magnesium (Mg) with L-amino acids to eliminate or correct deficiencies.
Improves structure and firmness of the flower and fruit.
Provides the extra boost plants need during certain plant-development phases and other important natural bio-stimulants.
Calcium (Ca) – Integral structural element to plant cells
Magnesium (Mg) – Central element in the formation of chlorophyll, source of photosynthetic activity, enzymatic process activator
Pay attention when mixing PEAKBOOST and MASSBOOST as they can react with each other. Always add one, dilute and mix, then add the other.
If using multiple phosphorus based products, take care when adding MASSBOOST as phosphorus and calcium, when combined in high concentrations, may cause deposits and residues.
