Potassium Bicarbonate Food Grade Powdered Nutrient for Aquaponics

Potassium Bicarbonate is a high-quality, food-grade, 99.99% pure mineral powder, perfect for use in horticulture and as a potent source of potassium in aquaponic systems. This essential nutrient bolsters plant growth and health, making it a must-have addition for any aquaponics enthusiast.

Features and Benefits

  • Addresses potassium deficiency: Essential for plant growth, potassium is commonly deficient in aquaponic systems but can be easily replenished with Potassium Bicarbonate.
  • Enhances flowering plants: Potassium boosts flower development and quality, promoting bigger and more flavourful blooms.
  • Supports fish health: Potassium Bicarbonate increases water hardness and buffers pH changes, making it a safer environment for fish.
  • Prevents leaf burn and curl: Adding Potassium Bicarbonate mitigates telltale signs of deficiency like yellowing leaves, burnt edges, rusty spots, and curling.
  • Flexible dosing: Ideal for both greens and fruiting plants, this convenient powder is available in 500g, 2kg, and 25kg sizes with an included scoop.

How to Use

  1. If growing greens or plants in the vegetative stage, add 1 scoop (approximately 10g) of Potassium Bicarbonate per 400L of water once a week.
  2. For fruiting plants, add 1 scoop (approximately 10g) of Potassium Bicarbonate per 200L of water twice a week.
  3. If the pH level rises above 7, decrease it to 6.5 using phosphoric acid.
  4. Use an API GH/KH Test Kit to monitor water hardness and make sure it stays below 8 degrees KH.

Aqua Gardening Suggests These are Best For

Potassium Bicarbonate is best suited for aquaponic gardeners looking to enhance the growth and development of their plants, particularly flowering varieties. This versatile mineral powder can be tailored to suit the specific requirements of any aquaponics system, ensuring healthy, thriving plants and fish.

Notes from Aqua Gardening

  • Monitor pH levels and adjust as needed with phosphoric acid to maintain safe conditions for fish.
  • Keep an eye on the KH level to ensure it stays below 8 degrees.
  • Consult package directions for additional usage and storage instructions.


What are the benefits of using Potassium Bicarbonate in aquaponics?

Potassium Bicarbonate provides an ideal source of potassium for plants in aquaponic systems. It helps improve flower production, increase fruit and vegetable sizes, and enhance overall flavours. Additionally, the bicarbonate increases water hardness, creating a safer environment for fish that are sensitive to changes in water pH.

What are the symptoms of potassium deficiency in plants?

Symptoms include yellow burnt edges on leaves, rusty spots, curled leaf tips, reduced flower production, and fruits or vegetables that do not reach their normal size.

How should I use Potassium Bicarbonate in my aquaponic system?

For greens and vegetative growth, use 1 scoop (approx 10 grams) per 400L of water, once a week. For fruiting plants, use 1 scoop per 200L of water, twice a week. One scoop is included with each 500g and 2kg bag.

Can Potassium Bicarbonate affect my aquaponic system's pH levels?

Yes, Potassium Bicarbonate can increase your water's pH levels. If your pH goes above 7, decrease it to 6.5 using phosphoric acid.

How can I test my aquaponic system's water hardness?

You can use an API GH/KH Test Kit to measure water hardness. The recommended level of KH is below 8 degrees.

Is this Potassium Bicarbonate safe for use in my food-producing aquaponic system?

Yes, this Potassium Bicarbonate is food grade and 99.99% pure, making it safe for use in food-producing aquaponic systems.

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(SKU: 124402)

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