Fan Size Calculator

Calculate the minimum fan size in cubic feet per minute (CFM) necessary to replace the air in your grow space based on your particular setup.

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Color Temperature (Kelvin)

When it comes to feeding light to your plant, the color temperature of your bulbs is important. This is measured in Kelvin and typically ranges from 2,000K (warmer) to 8,000K (cooler). During vegetative growth, plants tend to prefer higher Kelvin values with more blues and whites. Once flowering begins, lower Kelvin values, made up heavily of reds and oranges, are ideal.

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Container Size / Volume Conversion

How much soil do you need for your pot? How many pots can you fill with that bag of soil? Use our chart to quickly convert between gallons, cubic feet, quarts, cups and liters.

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Photosynthetically Active Radiation (PAR)

The light plants use to perform photosynthesis falls within a narrow range of wavelengths between 400 and 700 nanometers. This range, or spectrum, is called photosynthetically active radiation - PAR for short.

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Soil pH Nutrient Uptake Chart

Soil pH is critical when it comes to nutrient uptake through your plants' roots. Check out our soil pH nutrient uptake chart to determine whether your pH is in the proper range for the nutritional needs of your plants

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