Grodan Macro Plugs, 35 packs of 50 count chillers-heaters-and-purification with an average increase of

with an average increase of available light of a whopping 48%

Compatibility: High Pressure Sodium and Metal Halide lamps

They can be easily mixed with other media for increased aeration and added moisture-holding capabilities

When you use this potting mix the miniature cubes stack on top of each other and air pockets are created throughout the pot

Used at regular intervals throughout the flowering stage

Grodan Macro Plugs, 35 packs of 50 count chillers-heaters-and-purification with an average increase ofThese rockwool plant starting plugs feature a slit for easy insertion of rooted cuttings. Ideal for growers using aeroponic EZ Clone machines. They fit perfectly into the holes of any standard rockwool blocks, inserted into pebbles, or any other type of growing media.