Category Archives: How to Grow Marijuana

How To Grow Marijuana

What Is Photosynthesis?

April 20, 2012 • 5 comments
It has long been known that the green part of plants, when exposed to light under suitable conditions of temperature… [Read More]
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What Distance Should My Light Be From My Plants?

April 18, 2010 • Leave a Comment
For (artificial) light, there is a law that always applies known as the Inverse Square Law. It states that light… [Read More]
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How To Read Light Level With An SLR Camera?

April 18, 2010 • Leave a Comment
Using your SLR camera in manual mode, you can measure light level. Set camera ASA speed to 200. Set camera… [Read More]
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Metal Halide Safety And Fixture Recommendations

April 18, 2010 • Leave a Comment
HPS (High Pressure Sodium) lamps can burn in any orientation. MH (Metal Halide) lamps come in three basic types: *Base… [Read More]
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How Do I Manipulate The Photoperiod For Larger Yields?

April 18, 2010 • Leave a Comment
The only photoperiod manipulation from years of experiments that offered discernible improvements was this adjustment made for 1 or 2… [Read More]
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Can Black Lights Be Used For Growing?

April 18, 2010 • Leave a Comment
Black lights will not work for growing cannabis. They do not produce the correct spectrum of light to grow plants.… [Read More]
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How Can I Improve The Air Flow In Air Cooled Light Hoods?

April 18, 2010 • Leave a Comment
How can I improve the air flow in air cooled light hoods? Like many of you, I use Hydrofarm hoods… [Read More]
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Should I Use A Light Mover?

April 18, 2010 • Leave a Comment
Light movers are mechanical devices that, as the name implies, move an HID in a fixed pattern over a garden.… [Read More]
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PAR For Plants, Lumen For People

April 18, 2010 • Leave a Comment
While the lumens measurement is based on the sensitivity of the human eye to light, PAR Watts objectively measure the… [Read More]
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How Do I Build my own Cool Tube?

April 18, 2010 • 1 comment
Configuration This type of fixture is very versatile. There are many different ways it can be configured: *hanging or mounted… [Read More]
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What Are Light Cycles And How Do I Use Them?

April 18, 2010 • Leave a Comment
The amount of time your garden should be exposed to lighting depends on what ‘cycle’ your garden is in. The… [Read More]

Can I Use Foil on my Flourescents?

April 18, 2010 • Leave a Comment
In a shop light type fixture, the bulbs are usually space a few inches apart. This type of reflector creates… [Read More]
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Basic Info On Fluorescent Lighting

April 18, 2010 • Leave a Comment
This is a compilation of basic information on fluorescent lighting that I have gathered over a period of several months. … [Read More]

How Can I Hang an Adjustable Reflector in a Box-Grow?

April 18, 2010 • Leave a Comment
This if for those who have a small area or box that is made of wood, dry-wall, or other material… [Read More]
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What Do All Of Those Lighting Terms Mean?

April 18, 2010 • Leave a Comment
This glossary will help you understand terms commonly used in the world of lighting. AVERAGE LIFE – The life expectancy… [Read More]
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What Are Compact Fluorescents And How Can I Use Them For Growing?

April 18, 2010 • 1 comment
BASIC INFORMATION Compact fluorescents are close relatives of the 4ft tube fluorescents, commonly used in shops and schools for their… [Read More]

How Do I Convert a Common Home Security Light into a Remote Ballast Grow Light?

April 18, 2010 • Leave a Comment
How do I convert a home security light into a remote ballast grow light? Contributed by: Spliffco, Inc. For some… [Read More]

What is a Suncircle? (Circular Light Mover)

April 18, 2010 • Leave a Comment
What is a suncircle? Made by American Hydroponics, it is a 360 degree rotating light balancer. It will rotate a… [Read More]
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How Much Will It Cost To Run My Lights?

April 18, 2010 • Leave a Comment
Here is an explanation to help you figure out your own cost of running your equipment. This assumes $0.12 per… [Read More]

How To Build an Inexpensive Carbon Air Scrubber?

April 18, 2010 • 2 comments
Building a carbon scrubber for de-odorizing stinky grows. The design is such that there is no back pressure on the… [Read More]