Grow Guides

Diagram showing how a carbon filter, duct length and bends reduce extractor fan airflow, and where grow room noise comes from

Grow Room Ducting and Noise: How to Get Full Ai...

Your extractor's rated airflow is measured with nothing attached to it, and almost all the noise you hear is made by the air rather than the motor. What the duct...

Grow Room Ducting and Noise: How to Get Full Ai...

Your extractor's rated airflow is measured with nothing attached to it, and almost all the noise you hear is made by the air rather than the motor. What the duct...

Diagram showing how high to hang a grow light and the target PPFD for seedlings, vegetative growth and flowering

How High Should Your Grow Light Be? Light Heigh...

Almost every lighting problem in a tent is a distance problem, not a wattage problem. The same fixture that scorches a seedling will grow a perfect crop three weeks later,...

How High Should Your Grow Light Be? Light Heigh...

Almost every lighting problem in a tent is a distance problem, not a wattage problem. The same fixture that scorches a seedling will grow a perfect crop three weeks later,...

VIVOSUN GrowHub controller with the VIVOSUN app dashboard on a phone and the AeroLight, AeroZesh and AeroWave devices it controls

VIVOSUN GrowHub: What the App Does and How to S...

What the free VIVOSUN app actually controls, how to pair a GrowHub in about five minutes, exactly which lights and fans it will drive - including Mars Hydro and AC...

VIVOSUN GrowHub: What the App Does and How to S...

What the free VIVOSUN app actually controls, how to pair a GrowHub in about five minutes, exactly which lights and fans it will drive - including Mars Hydro and AC...

Diagram: the timer switches the contactor, the contactor switches the lights, and the auxiliary socket keeps the fans running

Grow Room Timers and Contactors: How to Switch ...

A grow light asks more of a switch than almost anything else in a house. It draws a hard surge of current at the instant it comes on, it does...

Grow Room Timers and Contactors: How to Switch ...

A grow light asks more of a switch than almost anything else in a house. It draws a hard surge of current at the instant it comes on, it does...

What Size Pot Do Your Plants Need? The Complete Sizing Guide

What Size Pot Do Your Plants Need? The Complete...

Pot size is the cheapest decision in the whole grow and one of the easiest to get wrong. Too small and the plant runs out of root room, dries out...

What Size Pot Do Your Plants Need? The Complete...

Pot size is the cheapest decision in the whole grow and one of the easiest to get wrong. Too small and the plant runs out of root room, dries out...

pH scale showing the target bands for soil, coco and hydroponics, with a pH pen and a beaker of nutrient solution

pH Explained: The Right pH for Soil, Coco and H...

You can buy the best nutrients on the shelf, mix them at exactly the right strength, and still watch your plants go pale and stall — because at the wrong...

pH Explained: The Right pH for Soil, Coco and H...

You can buy the best nutrients on the shelf, mix them at exactly the right strength, and still watch your plants go pale and stall — because at the wrong...