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Aptus MassBoost

Original price $82.95 - Original price $1,239.95
Original price
$82.95 - $1,239.95
Current price $82.95


MASSBOOST is an organo-mineral plant booster that prevents calcium (Ca) and magnesium (Mg) deficiencies while stimulating powerful fruit set and development.

Calcium and magnesium are easily locked up or combined with other minerals in the growing medium forming what we call ‘junk salts’. This active behaviour can be a problem when trying to dial in supplementation of calcium and magnesium for your plants. APTUS takes a unique approach in that our calcium and magnesium are chelated with natural L-amino acids much like PEAKBOOST and FINALEBOOST. This makes the normally very open minerals be more directly available for assimilation into the plant.

Whereas most other calcium and magnesium products are classic mineral salt formulations, MASSBOOST functions as a pure source for the plants’ optimum and continued health.

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.

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

How To Use?

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 (Ca) – Integral structural element to plant cells

  • Magnesium (Mg) – Central element in the formation of chlorophyll, source of photosynthetic activity, enzymatic process activator

  • Use MASSBOOST with FINALEBOOST in the last weeks for yield, firmness and quality.

  • 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.

  • Because of the chelation with L-amino acids, MASSBOOST is up to 8 times stronger than other ‘typical’ CALMAG supplements. If using MASSBOOST during early growth, start with a lower dosage and gradually work up to full dosage based on the plants response.

Click Here For Feed Chart 

Click Here For Plant Deficiency Diagram 

Click Here to Access The Aptus Bible 

Click Here Spec Sheet & Manual