We are currently experiencing lead time & shipping delays nationwide. Thank you for your patience & understanding.

You have no items in your shopping cart.

Product was successfully added to your shopping cart.
Humboldt Nutrients Micro 2.5 gal.

Humboldt Nutrients Micro 2.5 gal.

Regular Price: $92.52

Special Price $57.24

(In stock)

  • Humboldt Nutrients Micro 2.5 gal. Humboldt Nutrients Micro 2.5 gal.

Humboldt Nutrients Micro 2.5 gal.

Quick Overview

FREE Grow Shirt for orders $150 or more

Online Pricing Only.

Please consider shipping costs when asking for price match at our stores.
Bulk discounts for Commercial & Large Grow Operations. Ask about financing. Commercial accounts save more - Request a Quote

Regular Price: $92.52

Special Price $57.24

Availability: In stock


NPK 5-0-1

Humboldt Nutrients Micro formula, was designed in Humboldt County to be used with our Grow and Bloom to be a complete growing nutrient system for hydroponics as well as other growing mediums.

Humboldt Nutrients Micro has all the micro nutrients necessary to create vigorous, healthy plants, strong aromas and large yields.

Through extensive research and development, the Humboldt Nutrients team of chemists has formulated an easy to use fertilizing program for a variety of vegetables, flowers and herbs. If you want to maximize your results, this is the 3-part base system for you.

Our premium three-part nutrient system leaves nothing to chance and ensures an excellent crop. When used in conjunction with our high powered additives, Humboldt Nutrients three-part fertilizer program helps you produce fantastic yields and premium quality crops.


  • Fill your reservoir with clean water before administering any nutrient or additive
  • Make sure that the water level in your reservoir is sufficient to effectively flood your desired area or table
  • Potential nutrient lock-up can be avoided by adding the Micro before the Bloom and Grow
  • Always wash your measuring cup immediately after adding and stirring in each nutrient
  • Never mix any of these nutrients together in their concentrated form
  • After adding and stirring in each nutrient, check and adjust the pH to between 5.0 and 6.5
  • Always check a small sample of water, not the whole reservoir
  • Not all meters will read identically, Humboldt Nutrients tests are conducted with a Hanna HI9813-0 meter
  • Keep the water temperature in your reservoir between 66 and 75 degrees F
  • Drain your reservoir and pumps at least once a week to prevent any salt build-up

Please avoid storing in direct sunlight and protect from freezing.

DERIVED FROM:Calcium Nitrate, Potassium Nitrate, Calcium Carbonate, Cobalt Nitrate, Potassium Carbonate, Iron EDTA, Iron DPTA, Iron EDDHA, Manganese EDTA, Molybdenum EDTA, Cobalt EDTA, Zinc EDTA.

Additional Information

Free Shipping No
Weight 35.1800
Height 14.5
Width 6.5
Length 8.5
GTIN 837654466131
Brand Humboldt Nutrients

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

  1. Be the first to review this product

Write Your Own Review