Conductivity Pen - EC or ppm Subsonic Harmonic revive stressed plants and produce

revive stressed plants and produce abundant yields with Superthrive

CALiMAGic delivers the power of calcium and magnesium in a form that prevents secondary nutrient deficiencies and builds stronger plant structure

Made in Germany

1-speed fan motor

HPS grow lights have a good spectral distribution however

Conductivity Pen - EC or ppm Subsonic Harmonic revive stressed plants and produceThe Bluelab ppm Pen simply tells you that your plants have the right amount of nutrients in your solution and lets you know if adjustments are needed. To feed plants well, we need to know what we're feeding them. Start with a quality nutrient. Measuring the conductivity every day is the best way to avoid over diluting or over concentrating your nutrient solution. Completely change the reservoir solution every 7 days. Top up the nutrient level between