Conductivity Pen - EC or ppm Magnetic PPM settings for tomatoes

PPM settings for tomatoes

Indoor plants

brand may/will be different than the one shown in the picture

Integrated empty CO2 tank sensor

Accepts garden hose end

Conductivity Pen - EC or ppm Magnetic PPM settings for tomatoesThe 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