BioBizz Bio Down – Organic Citric Acid pH Down for Soil & Organic Growing Systems

BioBizz Bio Down (formerly pH Down) is a 100% organic pH reducer formulated specifically for the organic growing sector. Made from citric acid derived from citrus fruits, it lowers the pH of nutrient solutions and substrates quickly and naturally — without the use of strong acids and without harming beneficial soil microlife.

Key Features

• 100% organic pH reducer – citric acid derived from citrus fruits
• Contains no strong acids – safe for soil microlife and beneficial organisms
• Suitable for use throughout the vegetative and flowering stages
• Compatible with all BioBizz nutrients and substrates
• Can be used at every watering
• Suitable for all substrate types and crop varieties

How to Use

• Mix your nutrients and measure the pH of the solution
• Add 0.1ml of Bio Down to decrease pH by approximately 0.5 points
• Stir for 10 seconds and re-measure the pH
• Repeat until you reach the optimal pH range of 6.2–6.5
• Apply at every watering as needed throughout the growing cycle

Ideal For

Organic growers using BioBizz nutrients and substrates who need a natural, microlife-safe way to adjust pH. Compatible with all organic growing systems and suitable for use from the vegetative stage through to the end of flowering.