Online Catalogue

Critical Mass

Online Catalogue | Nutrients & Additives | Field Marshal  |  Critical Mass

Critical Mass

Critical Mass



Critical Mass is an advanced PK additive for mid to late flowering. It can be used by growers using hydro, coco or soil.

Key benefits

Adds extra weight.

Boosts essential oil production.

Further information

Phosphorous (P) is a macro nutritional element for every plant. It is a vital component in the process of plants converting light energy into food, fiber and oil. It plays a key role in photosynthesis, the metabolism of sugars, energy storage and transfer, cell division, cell enlargement, and transfer of genetic information.

Potassium (K) is essential in the manufacture and transport of sugars and starches and in cell division. Potassium ensures the plant produces enough sugars during flowering, which are essential for the development of the fruit and flowers. Potassium also increases a plant’s resistance to diseases and mould which become more prevalent with increasing floral size and density.

As flowering plants progress through the reproductive stage their potassium requirements increase in relation to their phosphorus needs. Critical Mass provides the perfect ratio of phosphorous to potassium for this period of development.

How to use

Hydroponics & Coco
1 - 3ml per litre of nutrient solution.

0.5ml - 1.5ml per litre of nutrient solution.

When to use

Use from week 4 (day 22) of the flowering period until harvest.

To maximise crop flavour flush using FM Clean Cut and water for 3 - 7 days before harvest.

Critical Mass is available in 275ml, 1L and 5L sizes.

Online Catalogue | Nutrients & Additives | Field Marshal  |  Critical Mass