Hanna GroChek pHEP 4 Meter new-releases For hydroponics use 2 teaspoons

For hydroponics use 2 teaspoons of mycorrhizal fungi for every 10 gallons of tank reservoir

HO lamps: 8 included

Greenhouse whiteflies are typically found on poinsettias

The GroGreen is rated for 11

Compact Commercial Reverse Osmosis System that has all of the features as a large RO system over 10x's its size

Hanna GroChek pHEP 4 Meter new-releases For hydroponics use 2 teaspoonsThe pHEP 4 includes a dual level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability indicator, automatic shut off, electrode removal tool, and automatic calibrationall in a floating, waterproof casing. It is ideal for users who require the greatest accuracy and features while staying economical. Features Waterproof and designed to float Automatic temperature compensation Automatic calibration Tactile grip casings HOLD