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Dial it Down

Superior pH stability for all plants in all growing mediums.

pH Down | Professional Grade

Superior pH control for all plants in all growing mediums. Bring more predictability and consistency to your grow with our premium pH Down formulation. Bloom City’s pH Down formulation contains a strong and stable acid complex. pH Down decreases feed water pH to keep root systems and soil balanced.

  • Formulated for use in hydroponic gardens as well as soil gardens.
  • Add pH Down to every watering and aim for a pH of 5.8 to 6.2 for healthy and robust plant growth.
  • Bloom City is better because other pH adjusting brands use low grade industrial chemicals, which are not designed for plants.
  • Bloom City’s pH Down is strong and stable, which means your feed water will hold pH all the way into the root zone. 
  • Made in America from the highest quality sources by a small team of passionate plant scientists.

What To Know

  • Trust

    Precision you can trust

    Bloom pH Up is formulated and made in the USA

  • Pro

    Optimize like a pro

    Maintain optimal pH levels with professional grade pH formula

  • Stable

    Superior stability

    Achieve superior pH stability for all plants in all growing mediums

How It Works

Overview

Bloom City’s pH Down formulation contains a strong and stable acid complex. pH Down decreases feed water pH to keep root systems and soil balanced. Formulated for use in hydroponic gardens as well as soil gardens. Add pH Down to every watering and aim for a pH of 5.8 to 6.2 for healthy and robust plant growth.

When to apply

Add to every watering to adjust pH to the desired level, usually aim for a pH of 5.8-6.2

How much to use

When adjusting pH, start with 1mL (0.25 tsp) per gallon of water. Wait about 2 minutes, and test your water again. In most cases you only need 1-2mL (0.25-0.5 tsp) per gallon. If you have hard water, you may use slightly more. You may want to pick up some pH strips so that you can continually test.

Where to use

Designed for hydroponics systems, soilless mediums and soil gardens. Safe to use for all plants.

Types of plants

Safe to use for all plants. Designed for hydroponics systems, soilless mediums and soil gardens.

Guaranteed analysis

Phosphoric Acid, Citric Acid, Acetic Acid.

Bloom City Product Video

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Bloom City pH Down provides precise pro-level control.

Bloom City’s products are made in America from the highest quality sources by a small team of passionate plant scientists. Our ingredients are better for plants, better for you, and better for the planet. See it in action.

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Product Feed Chart

Feed Chart

When adjusting pH, start with 1 ml/ gallon of water. Wait about 2 minutes, and test your water again. In most cases you only need 1-2 ml/gallon.

If you have hard water, you may use slightly more. You may want to pick up some pH strips so that you can continually test.

What's Being Said

Sam D.Ratings

"Just like with the pH up this product is a no brainer. I heard about Bloom City from friends who highly recommended them and I couldn't be happier!"

Dan V.Ratings

"I have hard water around 8 or 9 pH tap, and this brings it down to low-mid 6.3ph with only 5-10ml to a gallon :) Always holds ph at stable levels, a great product!"

Quincy T.Ratings

"Just what I needed...only requires a small amount, so it will last! Excellent product, only the best from Bloom City."

Aaron B.Ratings

"You just have to sprinkle this like its magic dust powder. It's that powerful just a few drops from a syringe and the pH is down to 6 from 7.8. Drops pH like a stone!"