Bluelab® 2.77 EC Conductivity Standard Solution (250 mL) Growth Enhancer Accessible nitrogen is the key

Accessible nitrogen is the key to a plant having a strong and vibrant internal structure

oyster shell

especially if you aren't running an intake system from outside

Liquid Volume: 1 Liters

Bluelab® 2.77 EC Conductivity Standard Solution (250 mL) Growth Enhancer Accessible nitrogen is the keyBluelab 2. 77 EC Conductivity Standard Solution (250 mL) Most of Bluelabs EC ppm equipment does not need calibrating as they are all factory calibrated here at Bluelab (except Bluelab EC and ppm Pens). The 2. 77 EC solution is used as a reference or checking solution to ensure you have adequately cleaned the EC CF probe. To ensure solutions remain accurate: Avoid cross contamination Decanter into a smaller plastic cup Discard sample after use Store in