Pro Liquids MonoSil Stabilized Monosilicic Acid (OSA) - 100 mL

Plant-Available Silicon for Sturdier Growth - 100 mL Bottle

Silicon can be scarce or inconsistent in soilless and hydroponic setups, and many silicon sources are hard for plants to take up. MonoSil is a stabilized monosilicic acid (orthosilicic acid) concentrate made to deliver silicon in a form plants can absorb. The label lists a monosilicic acid content of 2.7%.

The 100 mL bottle suits growers who want to trial silicon supplementation, run a small indoor garden, or test it in one system before committing to larger volumes.

Key Features & Benefits

• Stabilized monosilicic acid — supplies silicon in a plant-available form.
• Liquid concentrate — mixes into a nutrient solution or a foliar spray.
• Works across systems — suitable for hydroponic, soilless and soil-based cultivation.
• Fertigation or foliar use — apply through irrigation or with a sprayer.

Who Should Use Pro Liquids MonoSil

Growers in hydroponic, soilless or soil-based systems who want to add silicon to their feeding program, from home gardeners to small-scale cultivators testing a new supplement.

About Pro Liquids MonoSil

MonoSil is a stabilized monosilicic acid (OSA) supplement in liquid concentrate form, sold as a single 100 mL unit. Its recommended nutrient solution pH range is 5.8 - 6.5.

Frequently Asked Questions

Q: What is monosilicic acid?
A: Monosilicic acid, also called orthosilicic acid, is the simple dissolved form of silicon. Plants can take it up through roots or leaves.

Q: Which growing systems can I use it in?
A: It suits hydroponic, soilless and soil-based cultivation systems. Follow the label directions for your setup.

Q: What pH should my nutrient solution be?
A: The recommended nutrient solution range is 5.8 - 6.5. Check pH after mixing and adjust as needed.

Q: How do I apply it?
A: You can deliver it through an irrigation system as fertigation, or spray it on leaves as a foliar feed. Follow the label for dosing.

Q: Why is it called stabilized?
A: Monosilicic acid tends to condense into silica gel at higher concentrations. Stabilizing the concentrate keeps the silicon in a usable liquid form.