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"LECA" (Light Expanded Clay Aggregate)
It is also a strong oxidising agent
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or can be filled with pots containing any growing medium
8) contains more calcium and magnesium than the plant can handle
TrolMaster Hydro-X CO2 Sensor MBS-S8 Accessories "LECA" (Light Expanded Clay Aggregate)CO2 Sensor for Hydro X only The optional CO2 Sensor (MBS S8) measures the CO2 PPM within the growing area. Using the MBS S8 allows the users to connect and control their supplemental CO2 system using the Hydro X. *Used in combination with one or more DSC 1 CO2 device modules. "Sensors should remain dry and clean to prevent premature failure. Do not spray foreign substances or allow water condensate on the sensors" Features: Built In Photocell