Marijuana Grow Basics by Jorge Cervantes Nutrient Solutions To avoid problems, change the nutrient solution in the reservoir every week. Change nutrient solution every two weeks in systems with a…

Marijuana Grow Basics by Jorge Cervantes Hydroponics Hydroponics stores make their money selling you hydroponic systems. The salespeople are knowledgeable and can tell you a lot about the systems they…

Marijuana Grow Basics by Jorge Cervantes Draining Water Marijuana does not like dry or soggy soil. Soil kept too wet drowns the roots, squeezing out oxygen necessary for nutrient absorption.…

Marijuana Grow Basics by Jorge Cervantes Moving Water A readily accessible water source saves time and labor. A 4×4 foot garden containing 16 healthy plants in 3-gallon pots needs 10-25…

Marijuana Grow Basics by Jorge Cervantes Bad Water If the raw irrigation water has a reading of more than 300 ppm, or the sodium level is above 50 ppm, or…

Marijuana Grow Basics by Jorge Cervantes EC / PPM Fertilizers (nutrients) carry an electrical current when dissolved in water. Nutrient (salt) concentrations are measured by their ability to conduct electricity…

Marijuana Grow Basics by Jorge Cervantes pH The pH scale, from 0-14, measures acid-to-alkaline balance. Zero is the most acidic, 7 is neutral, and 14 is most alkaline. Every full-point…

Marijuana Grow Basics by Jorge Cervantes Water Clean, balanced water is essential to grow marijuana. Water that tastes good to drink is usually okay for plants. Good water typically has…

Marijuana Grow Basics by Jorge Cervantes Activated Carbon Filter Activated charcoal filters absorb odor molecules and other pollutants in the air. They require three things to work properly. 1. Humidity…

Marijuana Grow Basics by Jorge Cervantes Masking Agents Essential oils available in several products actually kill odors by creating a neutral atmosphere at the atomic level. Such products are usually…

Marijuana Grow Basics by Jorge Cervantes Fragrance Cannabis has the most pungent fragrance from when it begins to flower through the end of harvest. Before flowering, many strains of growing…

Marijuana Grow Basics by Jorge Cervantes CO2 Generator Systems CO2 generator systems that burn natural gas or LP (propane) gas to produce CO2 are less expensive to operate than emitter…

Marijuana Grow Basics by Jorge Cervantes CO2 Emitter Systems CO2 emitter systems produce no toxic gases, heat, or water. They are also precise, metering an exact amount of CO2 into…

Marijuana Grow Basics by Jorge Cervantes Carbon Dioxide (CO2) Enrichment Cannabis can use more CO2 than the 0.04 percent (400 ppm) that naturally occurs in the air. By enriching the…

Marijuana Grow Basics by Jorge Cervantes Air Temperature and Humidity Use the vent fan, heater, and air conditioner to maintain the proper temeperature and humidity in the grow room. If…