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Complete Grow Tent Packages

Complete Grow Tent Packages

Start growing indoors today!

Complete Nutrient Packages

Complete Nutrient Packages

From beginner packages to advanced!

March Nutrients

Fabric Pot Blowout Sale

Gro Pro Fabric Pots on sale now!

Hydrobuilder Learning Center

Expert growing advice and tips!

Supplements & Additives

Cultured Solutions Nutrients 20% Off! All Nutrients 10% Off!

Hydrobuilder carries the best supplements and additives on the market to help with growth and root development. We carry more than 60 manufacturers as well as containers in sizes from 1 liter to 55 gallons. These supplements can contain micronutrients, vitamins, acids, silicon, and more. Many manufacturers offer combinations to give your plants what they need to grow big and develop strong root systems.