Over time pH will tend to fall - it can be adjusted up with this food-grade potassium hydroxide. This also adds potassium for plants to use.

VitaLink Essentials pH Down 250ml (81% Phosphoric Acid) is a quality adjuster necessary to control the pH of nutrient solutions. Concentrated for the professional grower.

VitaLink Essentials pH Down Easy is a quality adjuster necessary to control the pH of nutrient solutions. 

VitaLink ESSENTIALS pH Up is a quality adjuster necessary to control the pH of nutrient solutions.

VitaLink ESSENTIALS pH Up Easy is a quality adjuster necessary to control the pH of nutrient solutions. 

The PLANT!T pH meter is reliable and easy to use. Small and lightweight, it is ideal for any growroom.

pH Min is a pH regulator with which you can lower the pH value of the feed water to the ideal range of 5.5 - 6.5. Only a nutrient solution with the correct pH value ensures that the plant absorbs the nutrients in the correct ratio.

Ferro PH Plus Growth & Bloom raises the pH value in nutrient solutions during the growth and flowering phase of your plants. You can use this regulator when the pH in the nutrient tank has fallen too low after preparing the plant nutrient. A good pH range

Ferro Citric acid ensures that plant pathogenic (hostile) bacteria hardly have the chance to multiply. This flower-friendly and environmentally-friendly solution of citric acid is mainly used in the initial phase of the green leaf plant, because ATP and A

Ferro PH Min Bloom lowers the pH value in nutrient solutions during the flowering phase of your plants. A good pH range is important for the absorption of nutrients. Ferro recommends a pH value between 5.4 and 6.0, because the nutrients are best absorbed

Ferro PH Min growth lowers the pH value in nutrient solutions during the growth phase of your plants. A good pH range is important for the absorption of nutrients. Ferro recommends a pH value between 5.4 and 6.0, because the nutrients are best absorbed wi

Calcium Kick is a pH regulator that allows you to raise the pH value to the ideal range of 5.5 - 6.5. Calcium Kick also improves the soil structure and ensures optimum absorption of nutrients in the soil

Lemon Kick is a biological pH regulator with which you can lower the pH value of the nutrient water to the ideal range of 5.5 - 6.5.

Lemon Kick is a biological pH regulator with which you can lower the pH value of the nutrient water to the ideal range of 5.5 - 6.5.

pH Plus is a pH regulator with which you can increase the pH value of the feed water to the ideal range of 5.5 - 6.5. Only a nutrient solution with the correct pH value ensures that the plant absorbs the nutrients in the correct ratio.

pH Plus is a pH regulator with which you can increase the pH value of the feed water to the ideal range of 5.5 - 6.5. Only a nutrient solution with the correct pH value ensures that the plant absorbs the nutrients in the correct ratio.

pH Min is a pH regulator with which you can lower the pH value of the feed water to the ideal range of 5.5 - 6.5. Only a nutrient solution with the correct pH value ensures that the plant absorbs the nutrients in the correct ratio.

pH Min is a pH regulator with which you can lower the pH value of the feed water to the ideal range of 5.5 - 6.5. Only a nutrient solution with the correct pH value ensures that the plant absorbs the nutrients in the correct ratio.