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Description
General Hydroponics® Armor Si™ 0-0-4Armor Si is suitable for all types of plants during all stages of growth. It can be used for plants growing in hydroponics, coco coir and all types of media. Use as a growth enhancer with irrigation water, or in addition to your regular fertilizers. Armor Si improves plant structure and foliar development, increases yield, and improves flower and fruit production. In addition, your plants will experience improved heat and cold tolerance, stress
Armor Si™ is suitable for all types of plants during all stages of growth. It can be used for plants growing in hydroponics, coco coir and all types of media. Use as a growth enhancer with irrigation water, or in addition to your regular fertilizers.
Armor Si™ improves plant structure and foliar development, increases yield, and improves flower and fruit production. In addition, your plants will experience improved heat and cold tolerance, stress resistance and light absorption, which leads to greater plant stature.
Armor Si™ 0-0-4 Features:
- Use for plants growing in hydroponics, coco coir and all types of media
- Use as a growth enhancer with irrigation water, or in addition to your regular fertilizers
- Improves plant structure and foliar development, increases yield, and improves flower and fruit production
- Guaranteed Analysis: Total Nitrogen (N) 0.0%, Available Phosphate (P₂O₅) 0.0%, Soluble Potash (K₂O) 4.0%
Additional Information:
Armor Si MSDS (PDF)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.6 ★★★★★
Based on 631 reviews
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Product Reviews
★★★★★ 5
great bar soap
Scent: eucamint
I like this bar soap. It lathers, cleans, and rinses effectively and does not dry out my skin. It exfoliates lightly. It's a decent size and shape bar that makes it convenient and easy to use. The package count is a reasonable 3 bars and the packaging in minimal. Its a well made bar of soap. And its plant based and natural. The scent smells great and is subtle and not perfumy. I'm a guy and this soap is great for me.
I have long been on a quest to find a bar soap that doesn't dry out my skin and has a scent for a guy without being a stupid scent like burned wood, leather, tobacco, etc. Plus the bar shouldn't be so big and heavy that its difficult to use, to store, or breaks your foot if you drop it. I also don't want to have to buy 12 bars at once nor should it be super expensive. Plus has to be natural and biodegradable. I found a brand and bar that did all that and used for a number of years, but then they stopped making it. So, I went on a new quest of many different bar soaps and when I found this one, it checked all the boxes and expect it will be my new ongoing bar soap for years to come.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Great quality Soap
Scent: Oatmeal Shea (Unsented)
This natural bar soap is absolutely fantastic! I’ve purchased it multiple times now, and it has never disappointed. The quality is consistent with every bar — it lathers well, cleans thoroughly, and leaves my skin feeling fresh without any dryness.
I really appreciate that it’s made with natural ingredients, and the scent is clean and refreshing without being overpowering. It lasts a good amount of time, making it a great value as well.
Overall, this is a high-quality soap I keep coming back to. The fact that I’ve bought it multiple times says it all — it’s reliable, gentle, and one of the best natural soaps I’ve used. Highly recommended!
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Reviewed in the United States on November 7, 2025
★★★★★ 3
Sometimes Size Does Matter
Scent: Alpine & Spice, Scent: Alpine & Spice
Let me just get this out of the way now the soap itself smells decent, nothing wrong there. I only wish I got another cent. Not that this one smells bad it’s just it wasn’t my cup of tea. I’m mostly disappointed about the size because I’ve been through this before. The soaps themselves are not big enough to fill out the box as you can spot in some of the pictures and video. I honestly feel like the soap size was different in the pictures of the customer reviews that I saw. Each bar may last me a week and a half and that’s with a soap saver. To be honest, the box that it came in would fit two decent size soaps if they filled out the box.
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Reviewed in the United States on November 19, 2025
★★★★★ 5
As expected
Scent: vanilla orange
Love the scents of this soap. It's gentle on my skin and leaves me clean, fresh and soft.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
A Comprehensive Balanced History of the Guadalcanal Campaign -- Must Read!
Format: Hardcover
I've read a number of good books on the Guadalcanal campaign, and always thought that "Neptune's Inferno" by Hornfischer was the absolute best.
I was wrong. Although Hornfischer does a superb account of the Navy and its travails and triumphs, Inferno doesn't delve deeply into the Marine (and Army) land battles. This book does both. Moreover, it provides a continuous timeline of both, and does so in such a way that the reader better understands both as related actions. For instance, I was never really aware that for the first three and a half months the Americans controlled the seas during daylight, and the Japanese at night (sounds a little like Viet Nam). The November 13 sea battle between Americans and Japanese -- in which US cruisers took on Japanese battleships and two American admirals died -- was in fact a clash of a major last ditch effort by the Japanese to reinforce their troops and destroy Henderson Field, which would have allowed them to control the seas both day and night. By that time there had been multiple bloody battles ashore between the Marines and Japanese, with the balance favoring the Marines, but if the Japanese had wrested control of the airfield and seas that would have been old history. The book includes a good view from the Japanese perspective, and some little known historical tidbets as well, e.g., Guadalcanal received its name from the Spanish home town of a ships officer who accompanied Spanish explorer Don Alvaro Medana, who discovered the island during a 1568 expedition to discover the fabled King Solomon's gold mines. Who knew? :-)
Bottom line: I highly recommend this book, both for its balanced coverage of the entire campaign, land and sea, and even more for its integrated narrative -- you know what was taking place (or had taken place) on almost a day-by-day basis, which allows the reader to fully appreciate how actions ashore influenced those at sea, and vice versa.
IMO, a must read, even for those who thought (like me) that they knew it all!
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Reviewed in the United States on October 12, 2017