Emerald Harvest pH Down 55 gal Master Controller This product is sold in

This product is sold in pairs

TrolMaster (AS-2) CO2 Alarm Station with Audio/Visual Alert + LED Display – Includes Cable Set

you can adjust settings and turn the unit on or off with simple voice commands

Scale insects (including Soft Scale and Armoured Scale)

Emerald Harvest pH Down 55 gal Master Controller This product is sold inDescription Product Details Emerald Harvest pH Down pH up and pH down: Keep the nutrient solution and the growing medium in the "sweet spot" (pH 5. 56. 5) for optimal nutrient uptake and no nutrient deficiencies. pH Up and Down are buffers composed of a weak base (Up) and weak acid (Down) designed to correct pH imbalances. pH Up and pH Down adjust the pH for optimal nutrient uptake and stable beneficial bacteria colonies, and they forestall nutrient