Power Si is a proprietary organic biomix of mono-silicic acid, containing highly bioavaliable micro and macro nutrients. It is a pure, highly concentrated Silica formula with fast visible effects.

Power Si increases nutrient absorption and bioavailibility of all other nutrients by acting as an efficient transporter. Furthermore, Power Si reduces nutrient salt build-up and dehydration of your crops. Power Si Silica is proven to build stronger cell walls decreasing susceptibility to various diseases resulting in stronger plants and thicker stems.

Power Si also corrects and reduces the space between internodes caused by environmental stress and nutrition imbalances improving your crops overall health. 


How to Use Power Si Mono-silicic Acid

Always add to a reservoir of clean water at every feeding during all stages of plant growth. It's very important to add Power Si before any other nutrients & boosters to maximise effectiveness. 

Power Si is diluted at the rate of 1ml per 6 litres of water

  • 250ml makes 1574 litres
  • 500ml makes 3153 litres 
  • 1L makes 6303 litres


Power Si Feeding Tips

If during early bloom your plants continue to stretch too much, double the dose up to the bloom stage. This helps tighten node spacing & slow vertical stretching.

If you are experiencing nutrient deficiencies, often Power Si helps correct those deficiencies within a few days by making existing nutrients more bioavailable. This is a better option than adding more nutrients & potentially causing more harm.


More Power Si Information - What is the MONO-SILICIC ACID Use in Power Si?

Silicon is the second most abundant element on earth. Research has proven it to be vital for optimal plant growth, strength, and resistance to plant stress. Orthosilicic acid is the stabilised form that transforms into monosilicic acid when mixed in water. Plants need silicon converted to silicic acid In order to be readily absorbed by the root system. This process will eventually occur on its own with microbial interaction but takes much longer. Orthosilicic acid is the fastest, most effective way to deliver the optimal benefits of silicon to your plants.


Many other commonly used silicate products are not bioavailable and therefore take longer and need microbial interaction to become available to the plant. Silicic acid is the fastest way to deliver silicon. Silicic acid also has a positive interaction with calcium so you will see increased benefits and calcium usage with Power Si.



Power Si is intended for use with any hydroponic nutrients you are already using. In fact, it optimises the effects of all other nutrients by acting as a transporter for other elements. Think of it as a vehicle to help pull necessary elements and nutrients up through the root system and into the plant walls. This increases general plant strength, health, and nutrition.


Power Si provides better resistance to stresses from temperature and pests by increasing cell structures and the epidermis layer. This results in stronger plants with thicker stems to increase dry weight. Power Si also has the ability to reduce and control the space between internodes caused by temperature stress and bad nutrition. It increases resistance against salinity (nutrient salt build up) and reduces transpiration (loss of moisture from the leaves). Often, you see improved results within just a few days, especially when used as a foliar spray.


Some of the effects seen with Power Si can appear like those of plant growth regulators (PGRs), Power Si contains no synthetic or unnatural PGRs. The key thing to understand is that silicic acid works with natural plant mechanisms rather than trying to manipulate in unnatural ways.


Power Si is pure, concentrated, and fast acting, making it extremely cost effective. The application rate is 1ml per 6 litres so you use a very small amount compared to other silicate products. Bioactive silicon is also much more readily absorbed by the plant than other silicates. Many new products claim silicic acid since it’s a trending technology. Power Si is the original, patented formula of silicic acid for plants, and is a much more affordable option when the dilution is taken into account.



No, unlike many other silica products, Power Si doesn't raise the pH of your water and can also stay in your reservoir without creating unwanted residue.

(SKU: 129355)

SKU 129355
Brand Powersi
Warranty Length Limited Warranty
Warranty Conditions Limited Warranty
Shipping Weight 1.25 kg
Type Additives

Limited Warranty - This product has been stored in a controlled environment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim.

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