

🌿 Grow Big, Grow Bold: Unlock Hydroponic Mastery with Every Drop!
FoxFarm Grow Big Hydro is a premium 3-2-6 organic liquid fertilizer designed specifically for hydroponic systems. It delivers a nutrient-rich blend enhanced with micronutrients and earthworm castings, promoting vigorous vegetative growth, flowering, and fruiting. Its pH-adjustable formula ensures optimal nutrient availability and prevents lock-up, supporting plants from seedling through bloom. Trusted by thousands, this easy-to-use fertilizer maximizes plant health and yield for professional and hobbyist growers alike.









| ASIN | B00CJJ8LC4 |
| Best Sellers Rank | #2,314 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #139 in Garden Fertilizers |
| Brand | FoxFarm |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,027) |
| Global Trade Identification Number | 00752289793219 |
| Item Form | Liquid |
| Item Weight | 1.3 pounds |
| Item model number | FX14094 |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | Hydrofarm, Inc. |
| Number of Items | 1 |
| Product Dimensions | 2.5 x 7.81 x 2.5 inches |
| Specific Uses For Product | Hydroponic |
| UPC | 752289793219 |
| Unit Count | 20.0 Fluid Ounces |
M**A
Reliable, well know brand
I’ve had a really good experience using FoxFarm hydroponics products. They’re easy to use, well-labeled, and produce consistent results. My plants responded quickly, showing healthy growth and strong development. I appreciate the quality of the ingredients and how versatile the products are—they work well in hydroponic systems and can also be adapted for other growing setups. While they’re a bit more expensive than basic nutrients, the results make them worth it. Overall, FoxFarm is a trusted brand that delivers dependable performance, and I’d definitely continue using their hydroponics products.
K**A
GREAT basic, all-purpose plant food for hydroponics
When the plant food that came with my hydroponic system ran out, I had a hard time deciding what kind to get. The FoxFarm products stood out to me, both because I'd seen them in my local HEB, and because they are derived from real ingredients. I know people will say synthetic fertilizers are the same, but I'm not sure. They are also potent enough they are easy to do, and maybe I'm just not as much a stickler for reading directions as I should be. The NPK on the Grow Big fertilizer looks just right for most plants you want to grow hydroponically, and it worked quite well when I added it following their directions. (2-3 t per gallon of water). I do need to get a conductivity or ppm meter to better gauge my water quality, especially as I am using tap water that contains minerals. But for now I'm doing OK>
W**.
A good plant fertilizer
This organic fertilizer seems to work very well
D**E
Seedlings to flower.
Works great couldn’t be happier. Plants stay healthy through flowering.
F**A
Essential for Hydroponic Systems – Excellent Growth Booster
I’ve been using FoxFarm Grow Big Hydro for my hydroponic plants, and I’m very pleased with the results. This liquid fertilizer provides a full spectrum of micro-nutrients, which helps promote strong vegetative growth, flowering, and fruiting. I’ve noticed a significant improvement in the overall health and size of my plants since I started using it. What I particularly appreciate about Grow Big Hydro is its ability to be pH adjusted without causing any nutrient lock-up, which is a big concern when using liquid fertilizers. The formula is easy to mix and apply, and it delivers consistent, high-quality results. My plants are thriving, and they seem more robust than before. At 16 ounces, the pint bottle offers excellent value for the price. It’s a great size for regular use and lasts for quite a while, making it a practical choice for hydroponic growers. If you're looking for a reliable, high-quality nutrient solution for your hydroponic garden, FoxFarm Grow Big Hydro is definitely worth trying!
Z**E
Loved this product
I started using this for all my plants whether they grown in water or dirt. The results have been amazing, especially those plants that are required regular feeding
L**H
Great Company - Great Fertilizer!!!!
I only use the Fox Farm products! The different fertilizers as well as the dirt. My plants THRIVE when I use them!!!!
D**W
Good purchase
I've been adding two capfuls to a gallon of water and feeding to my passive hydrponic (Mason jar) plants. It's working well.
D**D
I can’t honestly say this made a difference for my plants
V**W
These tomato plants have grown only using Fox Farm Grow Big Hydro Liquid - certainly does what is says. After sales service very good, highly recommend
E**E
Received as described.
D**N
Works
J**P
My tomato grow well with this product.
Trustpilot
3 weeks ago
3 weeks ago