
Lowers pH of nutrient solutions
Precisely lower the pH of your water and nutrient solutions. GT pH Drop is a citric acid-based solution that quickly and safely lowers the pH of water and nutrient solutions. Suitable for hydroponics, soil, coco coir and propagation.
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Quickly and reliably lowers pH in nutrient solutions, reservoirs, and irrigation water.
Correct pH supports the availability of iron, calcium, magnesium, phosphorus, and essential trace elements, helping plants access the nutrition they need to thrive.
The citric acid formula is plant-friendly and safe for routine use across all growing systems.
Non-dangerous goods classification makes it safe and simple to store, handle, and ship Australia-wide.
Avoid contact with skin and eyes. Wear protective gloves and face protection. Use in a well-ventilated area. Wash hands after handling. Store in secure and well-ventilated place.
Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.
Store in well-ventilated and secure place.
For advice, contact a Poisons Information Centre (Australia: 13 11 26; New Zealand: 0800 764 766) or contact a doctor. If swallowed, do NOT induce vomiting, give a glass of water immediately. If in eyes, hold eyelids apart and flush with running water for at least 15 minutes. If skin or hair contact occurs, remove affected clothing and flush area with running water.
For most growing systems, a pH between 5.5 and 6.5 is recommended. Regular monitoring helps ensure plants can consistently access the nutrients available to them and maintain healthy growth.
Yes. GT pH Drop is suitable for hydroponics, soil, coco coir, propagation systems, and tissue culture acclimatisation. It is designed for both hobby and commercial growers.
Add GT pH Drop gradually using a dropper, mix well, and re-test before adding more. The amount needed will vary depending on your water source and starting pH. Recording the number of drops used per litre is a good habit and will make future adjustments quicker and more consistent.
If your pH is too high, plants may struggle to access key nutrients including iron, calcium, magnesium, and phosphorus. This can show up as yellowing leaves, slow growth, or signs of nutrient deficiency even when nutrients are present in the solution.
GT pH Drop is a citric acid based solution. Unlike many harsh acid based pH reducers, it offers a safer, more grower-friendly formula suitable for routine use across all growing systems.