This Feeding Schedule is ideal when using rockwool media. Most cultivars do well with a lower EC when minerals are properly balanced. If you have heavy feeders it’s okay to increase A/B dosage slightly (always in equal amounts).

Fully inert coco tends to lock up initial doses of minerals, leaving the plants potentially deficient in early stages. A good practice is to charge the media before transplant with a higher dosage—week four Grow or Bloom is usually a good target. Experienced growers often find plants can take higher dosages in coco (up to 3.0 EC), depending on irrigation frequency.

In a recirculating reservoir, different minerals are absorbed faster than others, leaving a solution imbalanced over time. If you top off water levels, add back all fertilizers based on the amount of water added. We recommend weekly reservoir changes to reestablish mineral balance. Use Cleanse every day at 2-5ml per gallon.

If the soil is already charged with fertilizer or amendments, start a lower dosage. Monitor runoff until you see nominal EC levels. This Feed Schedule works well in most soil conditions. If your media has a lot of perlite (+30%), increase EC. Perlite reduces CEC so media doesn’t hold as many minerals.