8 Best Hydroponic Fertilizers

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The best Hydroponic fertilizers are nutrient solutions that come from plants, from animal feces, or are chemically manufactured, and can be used in a hydroponic system. These systems’ purpose is to produce and grow plants in a nutrient solution rather than soil, making them a much more controlled environment.

Considering that most plants require 16 different elements to grow properly, it’s vital for you to choose the right nutrients for your hydroponic system. Remember that if you remove soil from the equation, you must provide your plants with the nutrients yourself. 

On this page, I’m going to compare the 8 best hydroponic nutrients you can find on the market today.

#1 – Fox Farm Liquid Nutrient Trio Soil Formula (Three-Pack)

Fox Farm Liquid Nutrient Trio Soil Formula (Three-Pack)
The best thing about the Fox Farm Liquid Nutrient Trio is that it offers three different hydroponic fertilizers for your hydro system, allowing for more variety in your plants.

Overall, the “Tiger Bloom” bottle is a fast-acting, ultra-potent fertilizer, the “Big Bloom” concentrate is better suited for fruiting and flowering plants, and the “Grow Big” provides a vegetative and compact growth for your plants.

Another great feature about this product is that you can use it in soil if you want to, making it one of the most versatile products on this list. Read more about this hydroponic nutrient package here.

#2 – MasterBlend 4-18-38 Fertilizer Kit

MasterBlend 4-18-38 Fertilizer Kit
MasterBlend’s products are used by many professionals worldwide to grow their plants. It’s important to note that while this is a solid fertilizer, it does an excellent job at mixing with water, which is important for hydroponic systems.

The kit comes in three separate bags. MasterBlend’s 4-18-38 bag comes with all the nutrients your plants need to grow, thrive, and blossom without any problems. On the other hand, you also get a bag of Epsom salt and a bag of calcium nitrate to complete the experience.

See more details and current price on Amazon.

#3 – General Hydroponics Go Box

General Hydroponics Go Box
The “Go Box” from General Hydroponics offers a selection of eight different hydroponic fertilizers you can use.

One of the most remarkable things about the Go Box is that it comes with two “BioThrive” bottles. In essence, the first one (called Grow) is used to help plants complete all their glowing cycles correctly, whereas the other (called Bloom) is used to make the plants blossom much better when they become bigger.

Additionally, this product comes with an easy-to-understand set of instructions. I found the process to use these bottles easier than with other products, so if you’re looking for a powerful product from a reliable source, the Go Box is the right option. Read more about Go Box on Amazon.

#4 – AeroGarden Liquid Nutrients (One Liter)

AeroGarden Liquid Plant Food
This hydroponic nutrient is an excellent option for those starting with hydroponic systems. Overall, all you have to do is mix the formula with water, and you’re good to go!

Since this is a single formula product, you may not have the chance to customize your nutrient solution throughout your plants’ growing cycles. However, the formula was designed to be effective in all stages of your plant’s growth, so this may not be a problem anyway.

While I recommend this one for beginners, it may still be a viable option for those who don’t want to spend much time customizing their nutrient solution. Read more about this Liquid Plant Food here.

#5 – Hydroponic Nutrients – Best Buds Hydroponic Plant Food

Beanstalk’s Best Buds
Beanstalk’s Best Buds hydroponic plant food comes with two 36oz bottles (“Grow” and “Bloom”). In essence, these were designed to help your plants grow beautifully throughout all their growing stages.

Additionally, both of these hydroponic solutions come with a complete nutrient profile, so you don’t have to worry about your plants missing any of the nutrients they need to grow correctly.

More information and current price on Beanstalk’s Best Buds on Amazon.

#6 – EZ-gro Liquid Plant Food

EZ-gro Liquid Plant Food
EZ-gro’s bottle works in all “AeroGarden” models and “Smart Garden” models you may have. The bottle itself offers up to 100 feedings of plant nutrients, and it covers everything your hydroponically grown plant needs to grow from the seed up to the flowering and fruiting.

Whether you’re growing indoor or outdoor plants, this is a simple and effective solution for you. Read more about it on Amazon.

#7 – Humboldts Secret Base Bundle

Humboldts Secret Base Bundle
This “Secret Base Bundle” features a complete macronutrient profile for plant nutrition, meaning it has everything your plants need to grow. However, the most remarkable part about this hydroponic fertilizer is that it’s commercial-grade and garden-friendly, meaning it’s one of the safest options for your plants.

For additional information and current price see Humboldts Secret Base Bundle on Amazon.

#8 – General Hydroponics Flora Grow, Bloom, and Micro Set

General Hydroponics Flora Grow, Bloom, and Micro Set
The General Hydroponics fertilizer set is considered by many people one of the best options for hydroponic nutrients on the market. Thanks to its three-bottle set, you can customize your mixtures to fit your plant’s needs.

Additionally, this product features highly purified concentrates for maximum solubility. Read more about this product here.


Which Product Is Best for You?

It depends on what your goal is.

If you’re starting with hydroponic nutrients and want the easiest option possible, products like the Humboldts Secret Base Bundle or the AeroGarden Liquid Nutrients are great since they offer everything you need in a single bottle.

On the other hand, if you’re going for a more “customized” experience, I suggest you go for General Hydroponics’ or Fox Farm’s products since they offer many more mixture options for your plant’s nutrients.

Bottom Line

Whether you’re a beginner or an expert with hydroponic systems, there are many different options you can choose from. Generally speaking, I recommend that you go for what feels more convenient for you.

In the end, your goal is to grow beautiful and healthy plants, but also to enjoy the experience!


Shaun Anderson

Shaun Anderson

I love my garden, especially growing my own (and my family’s) food, so I decided to go into Hydroponics and learn all that I can on the subject.

Join me on this journey and discover how it all works.

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