GH Hardwater Flora Micro 55 Gallon Outer Diameter (OD) Grow Trays we recommend using reverse osmosis

we recommend using reverse osmosis (RO) water or water up to approximately 100 ppm (EC 160 µS/cm)

Multi-Functional: This ventilation combo removes heat and eliminate the undesirable ill-smelling odors in the grow tent to solves air delivery problems without major system rework or expense

During the last two weeks

Sun Blocker® helps conserve energy

Adjustable brightness display

GH Hardwater Flora Micro 55 Gallon Outer Diameter (OD) Grow Trays we recommend using reverse osmosisIf your tap water is over 200 ppm (or contains Calcium above 70 ppm), use Flora Micro Hardwater. If your water contains 30 to 50 ppm Calcium, you can mix our original Flora Micro with Flora Micro Hardwater to create a perfect Micro blend for your plants.