Hy-Pro pH- Phosphoric Acid – pH Corrector with Phosphoric Acid for Flowering
Hy-Pro pH- Phosphoric Acid – pH Corrector with Phosphoric Acid for Flowering
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Type: pH Down
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Base: Phosphoric acid
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NPK: 0-14-0
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Substrate: Soil, coco and hydroponics
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Phase: All, ideal for flowering
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Sizes: 500 ml, 1 L and 5 L
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Description
- ⚗️ Phosphoric acid: A pH down corrector with an NPK of 0-14-0.
- 🎯 Range 5.5-6.0: Leaves the nutrient solution at the pH for maximum absorption.
- 🌸 Ideal for flowering: Its phosphorus supply supports the needs of that phase.
- 💧 Soil, coco and hydroponics: Suitable for any substrate and in all phases.
- ⚠️ Very concentrated: Apply it drop by drop, with gloves and glasses, always measuring.
Lowers the pH to the optimal range of 5.5 to 6.0 and provides phosphorus just when flowering calls for it.
Full description
Hy-Pro pH- Phosphoric Acid – Phosphoric Acid pH Corrector for Flowering
Hy-Pro pH- Phosphoric Acid is a phosphoric acid-based pH corrector that lowers the pH of the nutrient solution to the optimal range of 5.5 to 6.0, the range in which the plant best assimilates nutrients.
It is suitable for soil, coco, and hydroponic cultivation, and can be used in all growth stages. Being formulated with phosphoric acid, it provides phosphorus to the nutrient solution, making it especially suitable during flowering.
Key Features
- Phosphoric acid-based: lowers the pH while providing phosphorus to the nutrient solution, with an NPK of 0-14-0.
- Target range 5.5-6.0: brings the solution to the pH range in which nutrient absorption is maximized.
- Especially suitable for flowering: its phosphorus supply supports the plant's needs during this phase.
- Suitable for all growing media: it can be used in soil, coco, and hydroponics, and in all growth stages.
- Highly concentrated: it is applied drop by drop, so a small container lasts a long time.
Technical Data
- Brand: Hy-Pro
- Product type: pH down corrector
- Composition: phosphoric acid
- NPK: 0-14-0
- Target solution pH: 5.5 - 6.0
- Reference solution EC: 1.5 - 2.2
- Growing media: soil, coco, and hydroponics
- Usage stages: all, with special interest during flowering
- Available sizes: 500 ml, 1 L, and 5 L
- Supplier references: 720038 (500 ml), 720039 (1 L), and 720040 (5 L)
- EAN: 8718719431153 (500 ml), 8718719431160 (1 L), and 8718719431177 (5 L)
- Weight: 0.63 kg (500 ml), 1.10 kg (1 L), and 5.00 kg (5 L)
How to Use
- Mix the nutrients first: fill the water tank and add the fertilizers before adjusting the pH.
- Check the EC: adjust the solution to set the EC between 1.5 and 2.2 depending on the growth stage.
- Adjust the pH at the end: correct the pH only when the fertilization is complete, because the nutrients modify the value.
- Apply drop by drop: the product is highly concentrated; add a few drops, stir well, and measure again.
- Measure constantly: repeat the operation until the pH is between 5.5 and 6.0, without overshooting on each addition.
- Check before watering: let the mixture rest, stir again, and check the pH and EC one last time.
Precautions
- It is an acid: always handle it with gloves and protective goggles.
- Keep out of reach of children: keep it closed, in its original container, and in a safe place.
- Do not mix it with other concentrated correctors: always add it directly to the water in the tank, never on top of another concentrated product.
Warranty
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Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.
Your satisfaction is our priority.
How to use
1. Fill the reservoir with irrigation water and add all the fertilizers first, before adjusting the pH.
2. Check the EC of the solution and adjust it to between 1.5 and 2.2, depending on the growth stage.
3. Measure the pH of the fertilized mixture, as this is the correct time to adjust it.
4. Add the pH- Phosphoric Acid drop by drop, wearing gloves and safety goggles, as it is a highly concentrated product.
5. Mix thoroughly and measure again after each addition, until the pH is between 5.5 and 6.0.
6. Let the solution sit, mix again, and check the pH and EC one last time before irrigating.

Hy-Pro pH- Phosphoric Acid – pH Corrector with Phosphoric Acid for Flowering
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Frequently asked questions
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It is a pH-down corrector formulated with phosphoric acid. Its job is to bring the nutrient solution into the 5.5 to 6.0 range, where the plant assimilates nutrients best. If your water drifts above that window, this product brings it back to the right point.
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Always at the end. Fill the tank, add the fertilisers and set the EC between 1.5 and 2.2 depending on the stage, and only then correct the pH. Nutrients change the reading, so doing it beforehand would force you to measure all over again.
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Yes, it works in all three substrates and in every stage of the grow as well. Whether you grow in a soil pot, in coco or in a hydroponic system, the pH target stays the same: 5.5 to 6.0.
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Because being made with phosphoric acid it does not only lower the pH, it also adds phosphorus to the nutrient solution, with an NPK of 0-14-0. That contribution matches the plant's needs in flowering, so you correct the pH and gain a useful extra at that stage.
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Apply it drop by drop: add a few drops, stir well and measure again, repeating until the pH sits between 5.5 and 6.0. As it is highly concentrated, a small bottle lasts a very long time. Before watering, let the mix settle, stir and check pH and EC one last time.
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It is an acid, so always handle it with gloves and safety goggles. Keep it closed, in its original container and out of the reach of children. Do not mix it with other concentrated correctors: always add it straight into the water in the tank, never onto another concentrated product.