Grodan Vital Rockwool Slabs are a great inert hydroponic medium for giving precise nutritional requirements for your favourite plants.
The Grodan Vital is the most popular of all rockwool slabs due to is firm composition that supports a healthy, dense root system from day one up to the day of harvest. These slabs are designed to be used with the aqua trays, as a container to keep the slabs from being disturbed and roots being broken. These slabs are best used in conjunction with a dripper system as plants can uptake the water contained within the slab rather quickly, especially when plants are at their most demanding stages of growth and development.
ALL MEDIUMS WILL INCUR A £4.00 DELIVERY SURCHARGE