FREE Delivery Over £99*
Discreet Packaging
Best Price Guaranteed
Pay In Instalments
Safe & Secure Checkout
Chat to an Expert

Skip to the beginning of the images gallery

More Information
Foxfarm

FoxFarm Grow Big Hydro

in stock

Starting at £20.00

Grouped product items
Image	Product Name	Qty
	FoxFarm Grow Big Hydro 1L £28.00
	FoxFarm Grow Big Hydro 3.79L £95.00

Fast & Tracked Delivery

Discreet Packaging

Safe & Secure Checkout

Product Description

Grow Big Hydroponic Liquid Plant Food is a potent, fast-acting, liquid concentrate fertilizer specifically designed for hydroponic use.

Key Features

Seaweed extracts
Potent vegetative growth booster
Designed for hydroponics
Easy to use

What It Does

When used as directed Grow Big Hydroponic encourages vigorous vegetative growth. Based on our popular Grow Big Liquid Plant Food, this is a special formula just for hydroponic systems.

How It Works

FoxFarm Grow Big Hydro works through added earthworm castings and Norwegian kelp into this special brew to encourage sturdier, healthier stems and leaves, but we also provide enough nutrients and trace minerals to create the kind of healthy branching that you’ll need later in the season for more abundant buds and blooms.

How to Use FoxFarm Grow Big Hydro

Beginning the first week, use 2-3 teaspoons per gallon of fresh water. Maintain nutrient solution pH levels between 5.8 and 6.3.

Dosage Recommendations

General Feeding: 10 ml/4L
Heavy Feeding: 15 ml/4L
Foliar Feeding: 2.5 ml/4L

Available Sizes

1L
3.79L

Product Questions (10)

FAQs

What does FoxFarm Grow Big Hydro do?

FoxFarm Grow Big Hydro is a specialized liquid fertilizer designed for hydroponic systems and soilless growing mediums. It promotes vigorous vegetative growth, enhances leaf development, and strengthens plant structure. This nutrient-rich formula is balanced to support rapid growth and prepare plants for abundant flowering. It's particularly effective during the early and mid-vegetative stages of plant growth.

Can I use Fox Farm Grow Big for Hydro?

Yes, FoxFarm Grow Big Hydro is specifically formulated for hydroponic systems. It's designed to provide optimal nutrition in water-based growing environments. The liquid concentrate easily dissolves in water, ensuring even distribution of nutrients throughout your hydroponic setup. It's compatible with various hydroponic methods, including deep water culture, nutrient film technique, and aeroponics.

How often should I use Grow Big Hydro?

Apply FoxFarm Grow Big Hydro every other watering during the vegetative stage. For most hydroponic systems, this typically means adding it to your nutrient solution once a week. However, frequency may vary depending on your specific plant needs and system setup. Always monitor your plants and nutrient levels, adjusting the application schedule as needed.

Is Grow Big Hydro suitable for all plants?

FoxFarm Grow Big Hydro is suitable for a wide range of plants grown hydroponically, including vegetables, herbs, and ornamentals. It's particularly effective for fast-growing, leafy plants. However, always check the specific nutritional requirements of your plant species, as some may need additional supplements or a different nutrient balance during certain growth stages.

How much Grow Big Hydro should I use per gallon?

The recommended dosage for FoxFarm Grow Big Hydro is 2-3 teaspoons (10-15 ml) per gallon of water. Start with the lower concentration and gradually increase as needed. For mature plants or heavy feeders, you can use up to 4 teaspoons per gallon. Always shake the bottle well before use and monitor your plants' response to adjust the concentration accordingly.

Can I mix Grow Big Hydro with other nutrients?

FoxFarm Grow Big Hydro can be used in combination with other nutrients, but caution is advised. It's often part of FoxFarm's complete feeding schedule, which includes products like Big Bloom and Tiger Bloom. When combining with other fertilizers, reduce the dosage of each to avoid over-fertilization. Always check for compatibility and monitor your nutrient solution's overall balance.

How long does Grow Big Hydro take to show results?

Results from using FoxFarm Grow Big Hydro can typically be observed within 1-2 weeks of application, depending on the plant species and growing conditions. You may notice increased leaf growth, stronger stems, and overall plant vigor. For best results, use consistently throughout the vegetative stage as directed, as the benefits accumulate over time.

Is Grow Big Hydro pH balanced?

While FoxFarm Grow Big Hydro is formulated to work in a range of pH levels, it's not inherently pH balanced. After adding it to your nutrient solution, always check and adjust the pH to the optimal range for your specific plants (usually between 5.5-6.5 for most hydroponic crops). Regular pH monitoring is crucial for proper nutrient uptake in hydroponic systems.

Can Grow Big Hydro cause nutrient burn?

Like any concentrated fertilizer, FoxFarm Grow Big Hydro can cause nutrient burn if overused. To avoid this, always start with the lower recommended dosage and increase gradually. Signs of nutrient burn include leaf tip browning and curling. If you notice these symptoms, reduce the concentration or frequency of application. Proper dilution and monitoring of EC (electrical conductivity) levels are key to preventing nutrient burn.

How should I store Grow Big Hydro?

Store FoxFarm Grow Big Hydro in a cool, dry place away from direct sunlight. Keep the bottle tightly sealed when not in use to prevent contamination and maintain potency. Avoid exposure to extreme temperatures, as this can affect the product's effectiveness. When stored properly, Grow Big Hydro typically remains viable for up to 5 years from the manufacturing date.

Frequently Bought Together