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In addition to calcium and magnesium
Sensi Cal-Mag Xtra includes supportive micronutrients such as chelated iron
Replace only the pH probe
The Bluelab pH Probe has a double junction reference which provides a longer life than many other pH probes and is a gel filled non-refillable probe
pH Perfect Micro
Boveda 62% 2-Way Humidity Control Packs 320g Boveda Humidity Control In addition to calcium andBoveda 320g 62% Humidity Control Packs Hold Five Pounds The largest pack Boveda makes, one 320 g unit covers up to five pounds at 62% RH. At 6. 75" x 5" and under an inch thick it lies flat in a tote base rather than taking usable depth. That flatness is the point at this size. A thick pack in a large vessel steals volume you paid for, while this one goes under the load and disappears. Moisture crosses a reverse osmosis membrane both directions, so a
