Athena Stack Size:Gallon There are species in the

There are species in the root pack that will also deter algae growth on rockwool when the root pack is added to your recirculating reservoir at the rate of 1/3 tsp per gallon

UV and infrared protection under HPS grow room lights

but the plastic will hold up to drilled holes as well

Grab a magnifying glass or microscope and see for yourself

the full spectrum ROI-E420 meets all demands of growers looking for a natural light spectrum

Athena Stack Size:Gallon There are species in theDescription Stack is a natural plant nutrient made from kelp extract. The nutrients in Stack encourage healthy growth and flowering. Stack gives the plant tools to reach its full genetic potential. When used as a foliar or root drench, Stack helps correct minor potassium deficiencies. Instructions for use: May be used as a foliar spray or root drench, one application weekly. Safe for use in irrigation systems. Stack contains organic ingredients and