1 Inch 4 Sheets Rockwool Cubes 200 Cubes Starter Plugs for Soilless Cultivation Seedlings Cuttings Clone Plants Hydroponics Germination Start

ZeeDix rockwool seed panters made of refined sponge fibers, small in size, tough and durable. It can be used as a growth medium. This kind of hydroponic seed starting sponge has excellent chemical stability and good water absorption and air permeability. Rockwool grow cubes support all the requirements of your seeds and cuttings in the different plant stages. Whether you are an avid gardener, or just starting out, these rockwool plugs will make plant propagation faster and easier. Specifications: Material: High quality basalt Size: 1.0 inches/ 1.5 inches Features：Light & Porous; Every piece can be divided into an independent growth medium. Applications: Hydroponics, seed starting, rooting, plant propagation, cloning systems. How to use: 1. Soak the rock wool with nutrient solution to adjust its EC value and pH value. 2. Use pH paper to make sure that its pH is in the desired range for your seeds. The optimum pH for most plant seeds is around 5.5. 3. Control the suitable moisture,