If you choose to grow hydroponically, consider also investing in a water purification system (such as a reverse osmosis filter) for your wastewater. If your hydroponic water contaminates local water systems due to improper disposal, you may face costly fines.
Any hydroponics system can work for growing cannabis, but if you’re new to this type of growing, we recommend a deep water culture (DWC) system. It’s affordable, easy to set up, and ideal for small-scale indoor grows. With a DWC system, you grow your cannabis in small buckets filled with nutrient-rich water. Because there’s a nonstop nutrient flow, DWC systems contribute to some of the fastest grows of any hydroponic system.
Soil for Growing Cannabis
As marijuana grows, it naturally produces volatile organic compounds (VOCs) in the form of terpenes. VOCs are natural toxins that can inhibit your indoor air quality and harm the environment. And then there’s the smell.
Anyone can grow weed indoors; it just takes the right marijuana growing equipment. You need your seeds, your grow lights, your fans, your soil and nutrients, and a few other essential accessories. We want to make it easy for you, so we’ve laid out the complete list of essential equipment along with tips for scoring the best prices.
Hydroponics Growing System
There are a number of small, inexpensive accessories that you’ll need to complete your indoor marijuana grow. These include:
If your humidity is too low, you will need a humidifier. If it is too high, you will need a dehumidifier. If the temperature is too low, you will need a heater (or more light, which also gives off heat). If it is too high, you will need air conditioning.
The Fox Farm Nutrient Trio is tried and tested for growing cannabis in soil. It is my top recommendation.
They can grow under just about any condition, but they really thrive when you give them exactly what they want.
The first thing you need is a space in which to grow. This space can take any number of forms.
Climate Control Recommendations
If you buy a kit like the one I recommended above in the climate control section, you do not need to worry about getting a filter, since one is included in the kit.
Your municipality has water quality info. You want to make sure your water contains fewer than 400 ppm of mineral content and no chlorine. You could also get a TDS meter to test this yourself, but these are not always reliable.
Your marijuana plants like a certain temperature and humidity.
Nutrients And pH Balance
If you’re buying a carbon filter separately, this one from Apollo Horticulture is great and sells for a reasonable price.
Even if you can grow legally in your area, it is still a good idea to let as few people as possible know that you are growing. For that reason, I highly recommend you invest in a charcoal filter to rid the exhaust from your grow room of any odor.