Aptus MassBoost - 250ML / 500ML / 1L / 5L / 20L

Calcium / Magnesium & Bud Booster

SKU: ADDT11030

Aptus Plant Tech

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All the Aptus nutrients and additives bottles of 100ML, 5L & 20L do not come with a foil seal. This is because they contain organic material and some of these materials need to breathe from the vented cap they put on.

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 behavior can be a problem when trying to dial in supplementation of calcium and magnesium for your plants.

Aptus Plant Tech takes a unique approach in that our calcium and magnesium are chelated with natural amino acids much like Peakboost and Finaleboost. This makes the normally incredibly open minerals be 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. Since there is next to no interaction with outside products, you can use Massboost for just 3 weeks in the bloom phase: weeks 3, 5, 7, and an optional fourth week in week 8.

Specifications

KEY INGREDIENTS

Calcium (Ca) – Integral structural element to plant cells
Magnesium (Mg) – Central element in the formation of chlorophyll, source of photosynthetic activity, enzymatic process activator

In The Box

[1] x Aptus MassBoost - 250ML / 500ML / 1L / 5L / 20L | Calcium / Magnesium & Bud Booster

WHY USE MASSBOOST?

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 the 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.

EDUCATION

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.

HOW TO USE

Add MASSBOOST to your reservoir every feeding as per the 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.

DOSAGE INSTRUCTIONS

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

Documents

Download PDF brochure

Material Safety Data Sheet (MSDS)

Documents

Material Safety Data Sheet (MSDS)

Q: Can I combine the usage of MASSBOOST and MINERAL-CALMAG simultaneously?

A: No, unless you're applying MASSBOOST as a foliar spray. For root drench applications, you should only choose between MASSBOOST or MINERAL-CALMAG, not both.

Q: Why does APTUS offer two variants of Calcium/Magnesium additives?

A: Both MASSBOOST and MINERAL-CALMAG serve as calcium/magnesium additives designed for the same growth stages. However, they cater to different cultivation approaches. MASSBOOST is an organo-mineral blend with both organic and mineral components, making it effective and bioavailable but unsuitable for hydroponic, DWC, and fertigation systems. It’s ideal for coco, peat, or soil-based cultivation.

Conversely, MINERAL-CALMAG is a water-soluble mineral formula known for its pH stabilization and non-degrading properties, making it suitable for any substrate and cultivation method without causing salt accumulation or blockages.

Q: Which APTUS calcium/magnesium supplement should I opt for: MASSBOOST or MINERAL-CALMAG?

A: Your choice depends on your substrate and cultivation method. Use MINERAL-CALMAG for rockwool or water-based setups, avoiding organic fertilizers. MASSBOOST is suitable for run-to-waste systems in coco, peat, or soil with a consistent feed mix. For recirculating hydroponic or fertigation systems, or extended reservoir use, choose MINERAL-CALMAG.

Q: Is it possible to use MASSBOOST for enhancing flowering in sun-grown organic soil crops?

A: Absolutely! Many outdoor cultivators use MASSBOOST for its densifying and bulking effects. For optimal results, root drench weekly during the crucial growth weeks, especially for plants with specific flowering periods.

Q: Should I incorporate MASSBOOST into my foliar regimen?

A: Yes, MASSBOOST is effective for quick nutrient deficiency recoveries during early stages. Avoid foliar applications post the 2nd flowering week. It's particularly beneficial for high-demand plants to prevent deficiencies.

For prevention, include 2-4 ml per liter in the last vegetative week and first two flowering weeks.

Recommended usage for optimal results:

Vegetative Foliar Spray:
- FASiLITOR: 1 ml per 1 litre
- STARTBOOST: 1 ml per 1 litre
- MASSBOOST: 2-4 ml per 1 litre (optional)
Flowering Foliar Spray: (Apply only during the first 2 weeks of flowering)
- FASiLITOR: 1 ml per litre
- BLOOMBOOST: 1 ml per litre
- MASSBOOST: 2-4 ml per litre (optional)