The PPM reading is mostly for total NPK fertilizer mix. You add the supplements after you check the NPK reading. Otherwise the reading will be off. The idea is to enhance the NPK fertilizer we use. If you subtract the supplement from the NPK then there is no enhancement only a miss representation of the true EC/PPM. One way to know if the nutrients are supplying enough fertilizer to the plant is to use a Brix meter and check the absorbed sugar and nutrient levels of the fan leaf. If you grow in dirt then you know it takes days or weeks for a problem to show up and sometimes even longer to correct.

I have had many successful grows with the PPM finishing up around 1600 â?? 1800 PPM then I add supplements like CalMag plus 5ml to the gallon and awesome blossom, or Big buds and fulvic acid. As well as either advanced nutrients Piranha or Tarantula microorganismâ??s products. All that is added after the NPK is mixed and registered.

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Zandor Reviewed by Zandor on . GH nutrients Is ther any special way u have to add the GH 3 part solutions to the resivior? I've heard alot that you have to mix the micro then the grow then the bloom is that true? Only reason I ask is that I went to the GH website site and it specificlly said order does not matter. Rating: 5