Cyco Silica — Pharmaceutical-Grade Potassium Silicate for Stronger Stems and Plant Resilience
Best for: Hydroponic and indoor growers wanting to build tougher plants that handle stress without the premium price tag
Our thoughts
Silica is one of those supplements that actually delivers visible results — thicker stems, healthier leaves, better disease resistance. Cyco Silica does the job properly with pharmaceutical-grade ingredients and a balanced potassium ratio. Mid-tier pricing without the compromise. One we recommend a lot for growers moving into hydroponic systems.
Cyco Silica is a potassium silicate supplement that strengthens plant cell walls from the vegetative stage right through to the end of the cycle. It delivers 6% bioavailable silicon plus 3% potassium, built with pharmaceutical-grade ingredients and advanced 1-micron filtration to ensure every drop works. Simple: stronger stems, tougher plants, better light uptake, real resistance to stress and disease.
How it compares
Cyco Silica sits in the mid-tier of potassium silicate supplements.
- Higher silicon concentration (6%) than budget options like Silica Blast (2%)
- Balanced potassium content (3%) — adds a bit of K boost without overcomplicating your nutrient schedule
- Pharmaceutical-grade quality at a sensible price point
- Works across hydroponic, coco, and soil-based systems equally well
You're getting professional-grade purity without the premium markup.
Usage guidance
Cyco Silica is straightforward to use across different growing setups:
Dosage
Add 1–2ml per litre of water in your nutrient tank. Test your pH and TDS after adding — silica can shift both slightly, so adjust back to normal ranges if needed.
When to use
Run it from early vegetative stage through to the end. Silica works all cycle, but you'll see the biggest payoff in stem strength during active growth.
Hydroponic systems
Essential in hydroponic and soilless media, where natural silica isn't present. Works cleanly in all system types — drip, flood, NFT, deep water culture.
Soil and coco
Optional but highly recommended. Even in soil, silica boosts resilience and disease resistance.
Technical specifications
- Silicon content: 6% (Si)
- Potassium content: 3% (K₂O) soluble potash
- NPK ratio: 0-0-3
- Form: Highly soluble liquid concentrate
- Available sizes: 1L, 5L, 20L
- Filtration: Pharmaceutical-grade, 1-micron advanced filtration
- Application rate: 1–2ml per litre of nutrient solution
Who this is for
- Hydroponic and soilless growers (silica is essential in systems without natural soil minerals)
- Anyone running plants in controlled environments where stress tolerance matters
- Growers building stronger stems to support heavier yields
- Experienced growers wanting to cut disease and pest pressure without extra chemicals
- Anyone serious about light efficiency and photosynthesis optimisation
Particularly suited to growers who understand that plant strength is a preventative measure, not a luxury.
Our take
Silica does something genuinely useful — it makes plants harder and more resilient from the inside out. Cyco Silica delivers that at pharmaceutical-grade quality without the premium pricing. The 6% silicon concentration hits the sweet spot for most growers, and the potassium bump is a practical bonus.
If you're running any hydroponic setup or want to reduce your reliance on pest and disease management, this is worth picking up. Proper supplement, proper price. Good time to buy while stock lasts.
