Grodan Starter Plugs 1.5" x 1.5" x 1.5" - 98 Cells media square wave technology ballast with

square wave technology ballast with integrated soft start the Lightspeed CMH 315W Lighting System is a smart and economical way to take advantage of the latest technology in hydroponic growing and indoor gardening

Measuring the conductivity every day is the best way to avoid over-diluting or over-concentrating your nutrient solution

Maintenance Free Design

Germinating seeds and rooting cuttings

2 x Dual barb elbow

Grodan Starter Plugs 1.5" x 1.5" x 1.5" - 98 Cells media square wave technology ballast withThe ideal propagation medium, Grodan's sustainable rock wool starter cubes saturate easily, hold their shape, and distribute EC evenly. To reduce the risk of damage to seedlings and cuttings, its important for your grow cube to be firm and hold its shape. Grodan starter cubes remain firm, despite the low density of their fiber structure. Their rock wool grow cubes were developed to have low resistance to developing roots, resulting in quicker rooting