Grotek Pro-Silicate 0-0-4 | Potassium Silicate Additive

What Is in Grotek Pro Silicate

The guaranteed analysis is 4.0% soluble potash. Grotek Pro Silicate is derived from potassium silicate and potassium chloride, and the potassium silicate is where both elements come from. So the 0-0-4 on the front describes the potash, and the silicon comes with it from the same salt. The silicon is the reason the product exists.

Mixing Pro Silicate Without Crashing Your Reservoir

Pro-Silicate is a strong base and must never go into nutrient concentrates. Add it to the tank of water first, before anything else. Then check pH and bring it to between 5.5 and 6.5, agitate the tank, and only then add the rest of the program. Reverse that sequence and the silicate reacts with concentrated calcium and phosphate, then drops out as a gel you cannot redissolve. The rate itself is small: 2.5 to 5 mL per 4 L of water, or half to one teaspoon per gallon.

Key Features

• 4.0% soluble potash, guaranteed: The 0-0-4 on the front of the bottle.
• Derived from potassium silicate: Potassium chloride makes up the rest. Both are named on the label rather than hidden behind a proprietary blend.
• 2.5 to 5 mL per 4 L of water: Half to one teaspoon per gallon. One rate covering soil, soilless and water culture.
• Goes in the tank first: Before nutrients, never into concentrates. This is the single instruction that decides whether it works or gels.
• pH to 5.5 to 6.5 after adding: A potassium silicate lifts reservoir pH sharply. Correct it before the rest of the program goes in.
• Developed for soilless and hydroponic systems: Media where potassium and silicon may not be present to begin with.
• Three tank sizes: 4 L, 10 L and 23 L, so the same concentrate scales from one room to a full facility.
• Very high dilution: A 4 L jug makes 3,200 to 6,400 L of finished solution depending on which end of the rate you run.

Technical Specifications