pH down for feeding water and nutrient solutions
The pH of your feeding water decides how well plants can take up the nutrients you give them. Gen200 pH- lowers the pH of the feeding water to the ideal range. It contains 59% phosphoric acid (H₃PO₄) of food-grade quality, which provides your plants with phosphate in its purest form.
Gen200 pH- at a glance
| Active ingredient | 59% phosphoric acid (H₃PO₄), food grade |
| Function | Lowers the pH of feeding water and nutrient solutions |
| Suitable for | Soil, coco and hydroponics – all nutrient lines |
| Weight | 1 L = 1.51 kg · 5 L = 7.3 kg |
| Pack sizes | 1 L and 5 L |
Directions for use
- First add all fertilisers and additives to the water.
- Wait at least 5 minutes and measure the pH.
- Add Gen200 pH- in small amounts, mix and measure again until the target pH is reached.
Which pH to aim for depends on your growing medium and growth stage. The Rhodos feeding schedule gives the pH targets per phase for soil, coco and hydroponics.
Mixing order
- Start with clean water and add Gen200 Control first.
- Add your base nutrients (for example Rhodos Base, Grow or Bloom) and the Gen200 additives you use.
- Wait at least 5 minutes, measure the pH and adjust with Gen200 pH- as the last step.
Safety and storage
Warning: causes severe skin burns and eye damage (H314). Wear protective gloves and eye protection. In case of contact with the eyes, rinse cautiously with water for several minutes. Keep out of reach of children and store below room temperature.
Works with every nutrient line
The Gen200 additives are not tied to one fertiliser brand. You can combine them with Rhodos powder nutrients, with Gen200 Control or with any other nutrient line, in soil, coco and hydroponics.
Where to buy: Gen200 products are sold through growshops and distributors. Ask us for a shop near you or become a reseller.










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