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Silica (Si) Supplementation

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Just bought some PowerSi last month. I heard some youtube grow show interview about silica in general. I don't remember which one.

Anyone familiar with it? I know it's expensive. I'm hoping for the best.

Posted : January 16, 2022 4:16 pm
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I went with this brand: Alchemist Stout MSA.    


(Trigger Warning: this is a product of the Hawthorne people).

I am not fully up on all the variations, but from what I understand, Mono-Silicic Acid is the type that is ready for uptake by the plant immediately. 

For organic growers, this might not be a big deal because you are used to waiting for microbial bowel movements for most of your plant nutrients. Whereas, salt feeders want their nutrients mainlined right into the plant's aorta. Wink  

It doesn't change my Res water from clear so it goes in the tank.

FYI - from the website:

Monosilicic acid (H4SiO4 aka ortho-silicic acid), the form found in Stout™ MSA, is the most bioavailable form of silicon. Stout™ MSA is immediately available to your plants and is stable over a larger pH range when compared to other silicon sources like potassium or sodium silicates (ex: will not gel under acidic conditions). This allows for more predictable delivery of silicon to your plants’ tissues, which is important since silicon is immobile and therefore needs to be constantly supplied for maximum results. Stout™ MSA increases stem and leaf strength allowing the plant to better support dense flowers and fruits. Available silicon is also well documented to alleviate stress from heat, drought and frost damage. User-friendly application rates of 5 mL per gallon makes it easier to use with dosers and injectors.

“A farmer is a magician who produces money from the mud.”
― Amit Kalantri, Wealth of Words

Posted : February 15, 2022 11:50 pm
monkeydo, Hart, twisted1 and 15 people reacted
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Like what others have said it is a game changer when using RO and hydro.

My first few hydro grows I did not use it.  When I started using armor si is when I started to get thick stems and larger yields.

Lol when I put it in the water I'm thinking this is like protein powder for me it's going to give the plant what it needs to grow strong arms.

Posted : June 24, 2023 12:08 pm
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