100 Pcs Rockwool Cubes, 1.57 Rock Wool Planting Cubes, Rock Wool for Hydroponic Growing, Perfect for Rooting, Cuttings, Cloning Plants, Seed Germination

How to Use 1. Please cut the rock wool into cubes according to your own needs with a knife before soaking. 2. Please simply soak the rockwool cube briefly (10 sec) in a nutrient solution to adjust its EC value and pH value. Don't squeeze it! 3. 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. 4. Control the suitable moisture, illumination and temperature to improve the germination rate of seeds. 5. When the robust roots penetrate through the rock wool about 0.5-1 inches, transplant it into a suitable container. Warm Tips: The rock wool cubes are formed by compression of transverse wire and the stratification is normal. When cutting, please use a wallpaper knife or scissors. In the process of use, please make sure that it is completely cut.

Package and Size: You will get 2 slate rockwool, a total of 100 plugs, with 3 different sizes for you choose, 25*25*25MM; 25*25*30MM; 25*25*40MM; They are fluffy and can be devided into a single one easily. They can help your plants grow healthily.Eco-Friendly Material: This rockwool is very effective hydroponics supplies, made of high-quality basalt, centrifuged at high speed to form fibers after being melted at high temperature, and compressed into blocks through proprietary process. They are soft and even texture, have good water absorption and strong air permeability, which is helpful to the growth of roots.How to Use: Please cut the rockwool into cubes according to your needs with a knife before soaking. Then simply soak the cubes briefly (10 sec) in a nutrient solution to adjust its EC and pH value to the range required by your seeds. The optimum pH for most plant seeds is about 5.5. Then control the suitable moisture, illumination and temperature to improve germination rate of seeds. When the robust roots penetrate through the rockwool about 0.5-1 inch, transplant it into a suitable container.Easy to Observe: The rockwool cubes are easy for you to manage the plant seeds, you can observe the germination of the seeds in one sheet. It can save your time and energy.Wide Application: These rockwool starter plugs have good moisturizing effect and handy planting hole, widely used in hydroponics, seed starting, rooting, plant propagation and so on. Much convenient than starting in the soil, these are great for planting enthusiasts and commercial growers.