Roots Organics Phos Rock Size:55 lb the PPFD sensor will AUTOMATICALLY

the PPFD sensor will AUTOMATICALLY increase or decrease the output level of your supplemental lighting systems to continuously maintain the exact lighting level (in PPFD) that the user selects

Industrial Grade

Expand your ebb & flow system up to 48 plant sites on one control unit—depending on reservoir size—control unit and reservoir sold separately

garden or kitchen

Roots Organics Phos Rock Size:55 lb the PPFD sensor will AUTOMATICALLYDERIVED FROM Phosphate Rock Roots Organics Phos Rock is an excellent source of phosphorus and calcium. Carefully processed and sifted to make it easy to work with, Roots Organics Phos Rock encourages vigorous flowering and fruiting. All of the Roots Organics phos rocks have been sourced for quality and harvested with bat friendly methods so you and your garden get performance with principles.