Please soak in water for at least one minute before use.Grow sponges must be used with hydroponic growing systems to ensure plants absorb sufficient water and receive adequate light.
All of these growth sponges are dried, you don't need to worry about mold.
After the sponge is soaked in water, the volume will become larger, the soil will be softer, and the water and nutrients will not be lost, which is more suitable for the growth of plant seeds and roots.
Imported peat from Denmark, degradable, strong water absorption.
These sponges are compatible with most hydroponic indoor garden system.
