50PCS Rockwool Cubes for Hydroponics Great Kratky Hydroponics Kit for Soilless Cultivation Cloning Plants Growing Seeds

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.

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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

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✅Material: This rockwool is a very effective hydroponics supply, 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, soft and even texture, 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 Transplant: Rockwool grow cubes keep the seeds long enough to establish a root system because of they have high water absorption while retain a lot of oxygen, you can cut it into different sizes, cubes will not sepreate after immersion, easily transplant to net pots, soil, planting machine after rootted.