How Much Will It Cost To Run My Lights?
Here is an explanation to help you figure out your own cost of running your equipment. This assumes $0.12 per KW hour price. (If...
Lighting Coverage Primer (Jackerspackle’s)
A very general rule of thumb is that your garden needs 50 watts of HID lighting per square foot of illuminated area. This rule...
How Do I Design a Fan Powered Cooling System for my...
Introduction:
Every serious growing box needs cooling. Most of us use air cooling because it is cheap and very effective. The following steps are used...
How Much Ventilation Do I Need in My Grow Room?
Each fan has a rating that tells you how many cubic feet of air per minute (CFM) it will move. When dealing with...
How Do I Manipulate The Photoperiod For Larger Yields?
The only photoperiod manipulation from years of experiments that offered discernible improvements was this adjustment made for 1 or 2 calendar weeks at the...
How to Grow Marijuana – Everything You Need to Know!
How to Grow Marijuana
Should I Start My Grow From Clones or Seeds?
Do Roots REALLY Grow in the Dark?
What is Marijuana and what Effects Could...
How Do I Power 12v Computer Fans?
Quiet, low power and surprizingly efficient, computer fans are an ideal cooling option for smaller cabinet grows. The only problem is that most computer...
What Is Photosynthesis?
It has long been known that the green part of plants, when exposed to light under suitable conditions of temperature and water supply, intake...
How To Read Light Level With An SLR Camera?
Using your SLR camera in manual mode, you can measure light level. Set camera ASA speed to 200. Set camera shutter speed to 1/125....
Why Should I Grow Using Hydroponics?
Pros:
Increased plant growth rates and yields with improved aromatics, potency and taste.
Cons:
Requires close monitoring of ph and ppm levels and total reliance on constant...
PAR For Plants, Lumen For People
While the lumens measurement is based on the sensitivity of the human eye to light, PAR Watts objectively measure the total watts of Photosynthetically...
Building your own Inline Fan
I used a Comair MX2A4 115cfm A/C fan for this project. I bought it at Grainger (was about $30).
· I took a few scraps...
What are Common Mistakes Made by First Time Growers?
First time growers frequently:
Overwater their medium based plants. When you pot your plant, judge its weight dry by hefting. Then, water the plant...
Should I Use A Light Mover?
Light movers are mechanical devices that, as the name implies, move an HID in a fixed pattern over a garden. A light mover can...
Stickydank’s Basic CO2 Method
Items Required:
* 10lb. white sugar
* 5 gallon clean bucket W/lid
* 4 1/2 gallons of water
* A piece of toast browned and hard
* A table...
What is a Suncircle? (Circular Light Mover)
What is a suncircle?
Made by American Hydroponics, it is a 360 degree rotating light balancer. It will rotate a single lamp or lamps and...