HANNA Electrode Cleaning Solution, 500 mL Certified OMRI Organic Testing your water source can

Testing your water source can help determine the correct formula

Using MaxiGro and MaxiBloom

Supports soil microbial activity as it breaks down naturally

It does not replace calcium

Suitable for use from early growth through flowering

HANNA Electrode Cleaning Solution, 500 mL Certified OMRI Organic Testing your water source canHanna Electrode Cleaning Solution 500ml HI7061L is a general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hannas cleaning solutions eliminate impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna suggests cleaning the bulb