Hydrofarm CO2 (.2-2 cu ft per hour) with Timer Carbon Filters The Hydro Fuel base nutrient

The Hydro Fuel base nutrient system provides a necessary differentiation between the grow and bloom cycles

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes

use Dry KoolBloom® for an additional bloom boost and to facilitate ripening

000 CFU per gram offers optimal conditions to ramp up nutrient transport

All Sweet® flavors are scientifically formulated with carbohydrates

Hydrofarm CO2 (.2-2 cu ft per hour) with Timer Carbon Filters The Hydro Fuel base nutrientProduct Details Deliver growth boosting CO2 with our user friendly, easy to operate system. With its programmable timer, it will automatically maintain ideal CO2 levels for optimum growth. For small to medium size areas, select the COSYS; for larger than 10' x 10' areas, select the COSYS20. To use Hydrofarm's CO2 Flow Rate Calculator, click HERE NOTE: Current COSYS & COSYS20 now come equipped with a black rubber O ring that has replaced the white