These premium clay pebbles have a very stable EC and pH, meaning they will not significantly change the pH of your nutrient solution, or leak undesired minerals into it.
Vitalink Clay Pebbles are ideal for hydroponic systems, including flood and drain, multi-pot and drip-ring systems, as well as support media for deep water culture.
Vitalink Clay Pebbles can also be used to mix with other substrates to improve their structure, or to add a drainage layer in the bottom of pots.
The pebbles have been triple filtered to avoid smaller pebbles and dust, but we advise to wash them prior to use as there may be some dust created whilst they are in transit.
Water retention capacity 10%
EC 0.5 mS/cm²