Rootswell rooting cubes come moist and infused with small amounts of just the right nutrients to make your seeds and/or clones thrive in their early stages of growth. These plugs are made of a solid peat that can easily be transplanted into soil, coco, or hydroponic systems without worry of particulate matter clogging up hydroponic systems. No additional nutrients are necessary with these cubes, although you may still use cloning solutions/gels when cloning. These are sterile and pH balanced, so no need to soak them in pH balanced water. These cubes come with a money back guarantee. If you're not satisfied, send them back and we'll refund the product cost. Product comes 50 per tray. Tray with drainage holes included. For Best Results: Plugs should be watered until uniformly moist before use Water when top of cube is dry - light brown in color Use pH balanced water or reverse osmosis when adding additional water Use vented humidity dome