When growing plants using hydroponics and / or coco the pH value is vital to the garden's health. Hesi pH correctors provide 3 defined solutions to help you reach that optimum level of pH. 

Hesi recomments a pH value is 6, but can range from 5.8 - 6.2, depending on your plants requirements and other growing conditions. If it falls much lower the roots can be damaged. If the pH value runs too high the plant cannot absorb all of the needed nutrients.

Ideally, the goal is to obtain a consistent level of pH throughout the plant's life - this helps reduce plant stress which, in turn, creates a healthy flourishing result. Be sure to check it regularly.

Hesi pH minus Growth is used during the plant's growing stage to lower the pH value.

Hesi pH minus Bloom is used to lower the pH levels during the flowering or vegetative stages.

Hesi pH PLUS can be used throughout the entire plant life to raise the pH values.

Keep track of the amounts used each time to help you determine future adjustments of pH levels.

More info (PDF format)