Hi everyone,
Someone has already used the Hanna Instruments HI 96719 tester to calculate the magnesium levels in his Reef Aquarium? Thanks!
Hanna Instruments HI 96719 0 to 2 mg/L Standard Method Mg Hardness Portable Photometer
Someone has already used the Hanna Instruments HI 96719 tester to calculate the magnesium levels in his Reef Aquarium? Thanks!
Hanna Instruments HI 96719 0 to 2 mg/L Standard Method Mg Hardness Portable Photometer