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Category: Environment

pH for Plants: The Complete Guide to Soil & Hydroponics

pH measures the concentration of hydrogen ions in a solution on a logarithmic scale from 0 to 14. A pH of 7.0 is considered neutral, values below 7.0 are acidic,

How to Clean and Sanitize a Grow Room Between Cycles

Pathogens that survive a harvest do not disappear between cycles. Botrytis spores, powdery mildew propagules, fusarium, and pythium persist on walls, benches, growing containers, irrigation emitters, and HVAC components —

Grow Room CO2 Calculator: Find Your Exact Flow Rate

Use the calculator below to find the precise CO2 flow rate for your grow room or tent — then use the guide to dial in delivery method, controllers, and target

What Are The Low Humidity Symptoms In Plants?

They say it’s not the heat that will get you, but the humidity - but when it comes to low humidity, plants can be particularly vulnerable. Too much humidity can

The Best Inline Fans For Grow Tents & Rooms

The grow room climate is not an aspect you want to skimp on - a premium fan is worth it’s weight in gold, because it will ensure your plants have

Best Grow Room Humidifiers + Sizing Calculator | HydroBuilder

Choosing the best grow room humidifier comes down to sizing it for your actual moisture deficit, not just your square footage. This guide breaks down how to size a unit

Tomato Leaf Curl: Why Are My Plant Leaves Curling Up?

At one point or another, you’re going to walk into your grow room or garden and notice your tomato plant leaves curling up. You may not know exactly what is

Common Mistakes Growers Make On Their First Grow

Easily one of the most common mistakes new growers make is with watering. They either water too little, or too much. But, overwatering is usually more common. Inexperienced growers dramatically

Vapor Pressure Deficit (VPD) Calculator & Chart for Cannabis and Indoor Growing

Vapor Pressure Deficit (VPD) is one of the most important—and most misunderstood—factors in plant growth. Learn how VPD impacts transpiration, nutrient uptake, and yield, and use our free VPD Calculator

Grow Room Odor Control: Tips For Fighting Smells From Your Plants

The smell of your plants could compromise your security in a few ways. The last thing you want is to make it painfully obvious you have an indoor grow, regardless

CO2 for Indoor Growing: The Grower’s Complete Guide to Setup, Targets & Results

Plants under CO2 enrichment don’t just photosynthesize faster — they also thrive at a higher temperature than plants growing at ambient CO2 levels. This is one of the most practically

The Ultimate Guide to Grow Room Air Conditioners: Sizing, Selection, and Shopping Made Easy

Keeping your grow room cool is essential to healthy plants and strong yields — but choosing the right air conditioner can be tricky. This ultimate guide from Hydrobuilder walks you