Made a noticeable difference in my last grow. It convinced me and I’ll use it for future grows. Read more

Don't need much.. I've been adding 1-2TSP per 5gallon during DWC res changes with great results. Doesn't change your PPM or PH. Keeps roots healthy. Update : This stuff really works. Look how white and healthy these DWC roots are.. Hydroguard has the following scientific aspects and proven uses: Scientific Backing: Hydroguard contains beneficial bacteria, notably Bacillus amyloliquefaciens. Scientific studies have shown that Bacillus strains have positive effects on root health and protection against harmful pathogens in hydroponic and DWC systems. Root Health Benefits: The active ingredients in Hydroguard promote root system vigor and resilience by colonizing the root zone with beneficial microorganisms. These microbes help prevent the growth of harmful pathogens like Pythium, Fusarium, and other root rot issues. Proven Efficacy: Research studies and hydroponic community feedback have highlighted Hydroguard's effectiveness in maintaining a healthy root environment, reducing the risk of root diseases, and enhancing nutrient uptake. Preventive Action: Hydroguard's use as a preventive measure has been noted in hydroponic systems, offering a layer of defense against potential root problems, ensuring plants have a strong foundation for robust growth. Read more

This product is MUCH better then GH rapid root. Never had a problem with root rot, and have thick white roots with lateral branching. Update: While I read that product is good for 6 months after opening, I saw a drop off after about 4 months. I did not notice how much until I bought a new bottle and immediately saw improvement in my plants. It’s possible that I did something to decrease the shelf life, but I have a masters degree in microbiology.... and know how to apply it to this product. For my purpose it wasn’t a huge issue, but if you are growing high value plants consider replacing every 4 months. I may do an experiment to calculate viable bacteria over time to confirm this. Will update if I find something interesting. It’s not very expensive, and it works so well. Read more

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My roots shifted from brown to white when using this. Read more

Amazing product: makes hydroponics much easier. All you need to do is not nutrient burn your plants after adding this stuff. Keep in a cool dry place and will last for years. Also works as a hot composting innoculant with OUTSTANDING results. Literally overnight started cooking the bad guys out of a rotting layer that an arborist had sandwiched between the wood chips they dropped off. Read more