Potassium Nitrate (KNO3) - 1lb (Bag)


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Provides nitrogen (N) and potassium (K) to plants.

Macronutrients essential for healthy plant growth and survival.

1 lb

Guaranteed Analysis

Total Nitrogen(N) ....................13.7%

13.7% Nitrate Nitrogen

Soluble Potash(K2O) ................46%

Select a reclosable bag or our new GLA Fert Jars for easy storage and dosing.

Research before your fertilize. For Fertilization methods and resources, please review our journal article: Understanding Aquarium Fertilizer & Planted Tank Fertilization Methods and Calculators.


4 Reviews

Robert Davies 23rd Jan 2020

High Quality

I purchased this along side with some Phosphates from GLA for my reef tank. The reef community is loving the results using GLA fertilizer. Increasing the nitrate in my tank has never been easier. I struggled to keep my nitrate existing not to mention my phosphates. Thanks GLA for providing us reef folks with a great set of products at a fantastic bargain.

Jose Muanis 20th Oct 2019

They last forever

I've been using these for a very long time (years) and they last forever. Plants do really well.

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