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， illumination and temperature to improve the germination rate of seeds.

4. When the robust roots penetrate through the rock wool about 0.5-1 inches， transplant it into a suitable container.

【Package Include】You will get 4pcs rockwool seedling starter plugs.Totally 200cubes. The size of each grow cubes is 1×1×1 inch. They can support all the requirements of your seeds and cuttings in the different plant stages. 🌱

【High Metirial】Rockwool seed planter are made of refined sponge fibers spun from molten basalt， small in size， tough and durable. Great for starting multiple seedlings and cuttings at once to save time and garden space.🌱

【Best Grow Media】High absorptive capacity of the nutrient solution while retaining oxygen， light and heat for plant growth. This kind of hydroponic grow media has excellent chemical stability and good water absorption and air permeability. 🌱

【Simply Operation】Rockwool cubes are easily cut it to fit different trays. Then just insert seeds into the pre-drilled holes of soak cubes. These grow medium will make plant propagation faster and easier.🌱

【Wide Applicaition】Use for stereo cultivation， hydroponic cultivation， surely favorite by home planters， organic farmers， gardeners， commercial growers.🌱