Grodan AO 25 X 25 X 40 mm Rockwool Cubes - Case Grodan 1" cubes hydroponics

hydroponics

carpenter ants

vermiculite promotes aeration helping young plants to take hold easily

CALCIUM AND  BICARBONATE LEVELS

Grodan AO 25 X 25 X 40 mm Rockwool Cubes - Case Grodan 1" cubes hydroponicsGrodan AO Rockwool cubes 1" X 1" X 1. 6" (25 X 25 X 40mm) Tapered to bottom (connected at top) 10 mm diameter X 10 mm deep seed hole 200 cubes per sheet Pollutant free Pathogen free Does not lock up nutrients Does not release substances into water or nutrients Designed specifically for irrigation efficiency and uniformity Holds ideal ratio of water to air Case: 30 sheets 6,000 cubes Rockwool or stonewool is made by melting basalt rock and chalk, then