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GH Armor Si 4 Litres

by General Hydroponics

Price: $74.99 Loading Data
In stock

Amazingly improve the health of your plants

Unlock the hidden potential of your soil

Stimulate strong growth for bigger yields

Maximize nutrient uptake for healthier plants

Provide essential minerals to promote robust growth

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GH Armor SI, Gallon from General Hydroponics is the perfect product for gardeners looking to improve the health of their plants. This revolutionary product helps to unlock the hidden potential of the soil and stimulate strong growth for bigger yields. It provides essential minerals to promote robust growth and helps to maximize nutrient uptake for healthier plants. GH Armor SI, Gallon also helps to improve the health of the soil, ensuring that your plants have access to the nutrients they need to thrive. With this powerful product, you can rest assured that your plants will be healthier and produce bigger yields.

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Product details
Product Dimension: 33.02 x 22.86 x 17.78 cm
Shipping Weight: 5.44 Kg
SKU: 1319

Manufacturer: General Hydroponics

Date first available: September 17 2015
Average customer review: 4 out of 5 stars 392 customer reviews
Bestsellers Rank: #16 in General Hydroponics
Customer reviews

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Verified Purchase

August 22, 2023

I have been using this product for the last 3 months or so and after several plant grows, it seems this silicon product "thickens" the main stem of several of my plants! I havent examined the roots of the plants yet but the fruits, uptake of water, and general thickness and support of the main stems have been amazing. Love this product, i would buy again!

Carl Gasperi


Verified Purchase

August 15, 2023

Be sure to add this “like silica” product to the water first. Be sure it’s Reverse Osmosis water with a Ec of 0. My tomatoes love this! Partner with Diamond nector to hydroponic or soil growth and it’s amazing! I have the biggest, red, delicious tomatoes I’ve ever gotten!

J lindvall


Verified Purchase

August 07, 2021

I understand the science behind the need for silica but I broke a branch off a plant in DWC and thought that silica would make a difference and I didn’t notice a difference at all, plants still remained fragile. I’m a huge fan of the GH lineup but I think armor si is pointless

Aaron B.


Verified Purchase

August 26, 2022

Hands down needed for stress and heat management. It just makes your plants stronger indoors and outdoors.
The first thing added to your tap water to feed your medicinal garden. Can be used with any food ....



Verified Purchase

Havent noticed any real difference yet

September 18, 2018

Started using halfway through veg, havent noticed any change in stem growth speed yet. Mainstem is large but it was growing pretty fast already. Will change review if it works better next time.



Verified Purchase

July 09, 2023

Structural integrity was definitely affected without so much as to always have a extra gallon so we always have extra for emergencies like not having it



Verified Purchase

May 10, 2018

Product is good, been using the GH line for a while however the bottle was opened and leaked all over the box, otherwise would have given 4 stars.

Kyle J Caldeira


Verified Purchase

March 15, 2019

Great value, this product lasts a long time! Make sure you add it to your water first then mix other nutrients. It really helps balance out the pH.



Verified Purchase

June 22, 2018

So many advantages using silica of any brand... But Armor Si has a very strong concentration versus other brands, and remains among the cheapest.

Timothy diegert


Verified Purchase

November 01, 2021

This product kicks ass !!! My Buds are HUGE and I owe it to this stuff...feel free to send me some other products to try

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