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BLOWOUT SALE! Available in both GROW (1-0.7-3) and FLOWER (2-1-3) formulas, Dutch Master ONE is the world’s best single part hydroponic plant nutrient. Combines superior performance with ease of use — without the sludgy mess found in other one-part nutrients!

For best results, use the online Nutrient Calculator (external link) for an individualized program to suit your needs.


Step 1: Fill your reservoir or tank to 2/3rds of its capacity.

Step 2: Add other nutrient additives, if necessary. Stir thoroughly to mix.

Step 3: Add Gold Range ONE according to the nutrient calculator and mix well.

Step 4: Use GROW during the plant’s vegetative cycle and FLOWER during the plants bloom cycle. Do NOT mix the two products together.

Step 5: Top off your nutrient reservoir and check nutrient strength using a TDS (PPM or EC) meter. If necessary, adjust nutrient strength by using small quantities of ONE or freshwater.

Step 6: Check and adjust pH. 5.5 to 5.8 for Hydro or Coco users. 5.8 to 6.5 for soilless systems such as Promix or Sunshine Mix.

Step 7: Do NOT add additional calcium or magnesium supplements to the mix.

Step 8: Feed according to your systems normal requirements.