New Articles and Tutorials

Grow Light Calculator

Grow Light Calculator

Posted in Climate & Light Light

We developed the grow light calculator to provide a scientific way to analyze and compare grow lights. Our calculator uses Photosynthetic Photon Flux (PPF) along…

Calculating Grow Light Efficiency, Coverage & Harvest Potential

Posted in Climate & Light Light

Learn how to use PPF data to calculate grow light efficiency, coverage and harvest potential. We explain the science behind our grow light formulas.

Grow Light Testing Protocol

Posted in Climate & Light Light

We developed our grow light testing project to provide reliable third-party data about grow light fixtures. We are working in collaboration with Shane Torpey from…

Total PPF Usable PPF and PPFD

Grow Light Metrics Primer

Posted in Climate & Light Light

Grow Light Guide Grow Light Tests and Reviews LED Fixtures Small: Up to 6sq. ft ViparSpectra XS 1500Mars Hydro TS 1000Migro 100+ Gen4Spider Farmer SF…

How much light do you need for cannabis

How Much Light (PPF) Do You Need for Indoor Cannabis?

Posted in Grow Set-Up Guide Light

To set up an efficient home cannabis grow, it is important to determine the optimal size of your grow light. In this article, we discuss…

How to Evaluate and Compare Grow Lights for Cannabis

Posted in Grow Set-Up Guide Light

A grow light is perhaps the most important piece of equipment for growing cannabis indoors. In this article, we explain what you need to know…

Grow Tents and Harvest Sizes

Posted in Grow Set-Up Guide

When you are setting up your indoor cannabis grow, one of the first questions is, “where will you grow your plants”. To effectively grow cannabis…

Germinating Cannabis seeds step by step guide

Germinating Cannabis Seeds – A Step by Step Guide

Posted in Growing Practices

Germinating cannabis seeds is one of the most exciting parts of the whole grow. It is almost magical to summon new life from a dormant…

Growing Cannabis in coco with high frequency fertigation

Growing Cannabis in Coco Coir with High Frequency Fertigation

Posted in Watering/Fertigation

Growing Cannabis in Coco We argue that coco mixed with perlite is the best medium for growing indoor cannabis. However, coco is only a superior…

Cannabis Mainline and Manifold

Mainlines & Manifolds: The Best Ways To Train Cannabis Plants

Posted in Plant Training

Mainline and manifold training are techniques to grow plants with eight main colas rather than one. Both techniques involve strategically topping the plant multiple times…