Feed Schedule

General Maintenance

  • Keep a tidy grow space, avoid excess wetness including humidity, use adequate air circulation, use clean filtered reverse osmosis water or tap-water.
  • Keep humidity low to increase resin production in blooming
  • Keep nutrient solution temperature below 75°F (24°C). Suggest to keep it cool at 65 to 68°F (18 to 20°C) to maximize oxygen in water.
  • Change entire nutrient solution every 3-7 days and top off with fresh water between nutrient changes
  • Check your ppm3 and use this as a guide when topping your reservoir.
  • Keep nutrient solution aerated to prevent anaerobic bacterial growth.

Useful Conversions

  • 1 TSP = 5 mL
  • 1 TBSP = 15 mL
  • 1 oz = 30 mL
  • 1 Qt = 946 mL
  • 1 Gal = 3.785 L
  • 1 Gal = 128 oz.
Heavy Harvest Grow1
Heavy Harvest Bloom1.5
Heavy Harvest Micro1.5
Hydrogen Peroxide1.5
NutriBoost 12.5
Jurassic Acid3


  • Each week: from days 1 to 6 use the nutrient chart dosages.
  • On the 7th day of every week, "the day of rest" change the nutrient solution & then flush only on Day 7 with only 1/4 of the nutrient dosage listed in chart.
  • On day 1 of the next week, increase back to the full dosage.

Troubleshooting Factors to Consider

  • Arid, bright, hot environments cause plants to drink more than if they are grown where it's humid, dim, and cool. Thus, gardeners should use less concentrated nutrient solutions when growing conditions are more intense in order to lessen the risk of overfeeding.
  • The pH (acidity or alkalinity) of a nutrient solution affects the availability of the elements contained within. Use pH adjusters to maintain pH between 5.5 to 6.5

Soil Vs Hydroponics

In general, the hydroponics feed schedule is very safe and effective when used in soil and especially safe in soilless media such as peat, rock wool, lava rock, etc…

That said, why not dial in the accuracy of your soil feed?

We can help.

Although our line-up of plant nutrients and fertilizers are excellent for the hobbyist and commercial grower, it is much easier to control nutrient levels in hydroponics and soilless environments because soils can be so different from location to location.

Health Canada, the Environmental Protection Agency and some states like California have specific regulations on inputs for agriculture. If you are concerned about regulators and your plant fertilizer inputs, please contact us for insight.

Choosing the correct plant fertilizer for your growing conditions is the most important variable when considering crop yields and outcomes.

We will design and manufacture (or teach you to manufacture your own) handmade, customized, artisan plan nutrients which will allow you to specifically control the fertilizer inputs in your unique growing conditions. We will consult to provide you with nutrients that meet Certified Analysis requirements.

Nutrilife has a small team of PhD's available to customize a feed schedule for you and/or your company.

For plant-science questions, and/or for urgent matters requiring immediate attention outside of business hours, please Dr. Gwyllyn Goddard via Phone/Text at at +1(604) 799-3390 or Email at gwyllyn@gmail.com.