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FoxFarm Grow Big Hydro Liquid Fertilizer, Plant Food with Micro Nutrients for Hydroponic Systems - Enhances Vegetative Growth, Flowering, and Fruiting - pH Adjustable, NPK 3-2-6 (Quart)

  • Based on 1,942 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 15
Order within 5 hours and 10 minutes
Available payment plans shown during checkout

Size: 1 quart


Features

  • AMPLIFY VEGETATIVE GROWTH: Grow Big Hydro is a high-performance houseplant fertilizer that promotes genetic growth, flowering, and fruiting. Perfect for healthier and more productive plants, it supports robust vegetation for thriving gardens
  • POWERFUL NUTRIENT-RICH BLEND: This 3-2-6 indoor plant fertilizer, enriched with earthworm castings and micronutrients, supports plant health and structure. It enhances soil quality, promotes vibrant foliage, and strengthens root systems for optimal gardening
  • HYDROPONIC-READY FORMULA: Specially designed for hydroponic, hydro liquid plant food ensures pH stability & nutrient availability, preventing lock-up. It gives plants balanced micronutrients for optimal blossoming, higher yields, and quality results
  • THRIVE FROM SEED TO BLOOM: Our all purpose fertilizer provides nutrients from early vegetative stages to flowering. It maximizes plant size & structure, supports every growth phase, & promotes abundant flowers and fruits, ensuring your garden thrives
  • EFFORTLESS FEEDING ROUTINE: Simply mix 2 tsp of this plant food for flowers per gallon for general feeding or 3 tsp for heavy feeding with each reservoir change. This nutrient control makes it perfect for all levels, offering a hassle-free application

Description

Grow big hydroponic is a true one-part fertilizer. Delivers a full spectrum of micro nutrients. Allows for pH adjustment without nutrient lock up. Emphasizes the maximum genetic growth, flowering & fruiting characteristics of each plant. Contains 3% nitrogen, 2% phosphorus & 6% potassium.

Brand: FoxFarm


Item Weight: 2.8 Pounds


Item Form: Liquid


Liquid Volume: 1 Quarts


Global Trade Identification Number: 18


Brand: FoxFarm


Item Weight: 2.8 Pounds


Item Form: Liquid


Liquid Volume: 1 Quarts


Global Trade Identification Number: 18


Manufacturer: FoxFarm


Number of Items: 1


UPC: 752289790218 400100009574


Unit Count: 1.0 Count


Product Dimensions: 3.1 x 3.2 x 8.9 inches


Item Weight: 2.8 pounds


Department: Unisex-Adult


Item model number: FX14010


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Essential for Hydroponic Systems – Excellent Growth Booster
Size: 1 Pint
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! ... show more
Reviewed in the United States on February 17, 2025 by Fred Giaconia

  • Great Company - Great Fertilizer!!!!
Size: 1 quart
I only use the Fox Farm products! The different fertilizers as well as the dirt. My plants THRIVE when I use them!!!!
Reviewed in the United States on August 22, 2025 by Linda H

  • Fertilizer
Size: 1-Gallon
Works so well. Easy to mix and use
Reviewed in the United States on July 26, 2025 by tll

  • Good product, easy to formulate
Size: 1 quart
Seems to be greatly appreciated, need to use cal mag with this, separate flowering mix available
Reviewed in the United States on June 16, 2025 by troyboy

  • Does the Job
Size: 1-Gallon
Does the job on my bud babies and tomato plants.
Reviewed in the United States on July 28, 2025 by M. Nelson

  • Good for great gardens.
Size: 1 Pint
We always use this. Follow instructions and you will have success.
Reviewed in the United States on August 18, 2025 by Wandaful

  • Grow baby grow
Size: 1 quart
Definitely grows big plants
Reviewed in the United States on August 18, 2025 by phillip peck

  • Perfect for my micro greens
Size: 1 Pint
I've been spraying a dilution on my micro greens (radishes and arugula) and they are very green and never burn at all. I love this product!
Reviewed in the United States on June 27, 2025 by Max

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