Bluelab Conductivity Pen (EC or PPM) drainage Pro Cal solves this issue

Pro Cal solves this issue with a readily available calcium source married with extra magnesium

Ideal for identifying strains of plants

Bio Vega has been specially developed for the plants' growth phase

not a good start for your crop

It also promotes vigorous

Bluelab Conductivity Pen (EC or PPM) drainage Pro Cal solves this issueThe Bluelab Conductivity Pen simply tells you that your plants have the right amount of nutrient 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