ubbink ubbink vijversubstraat 21 kg 1373100This Ubbink pond substrate is the ideal substrate for your pond floor, as it promotes the growth of beneficial bacteria and maintains the pond ecosystem. Ubbink pond substrate also promotes the development of nitrifying bacteria in your pond. It is suitable as a substrate or as a top layer in hanging baskets with aquatic plants. It can be used in ponds with liner or ready made ponds. Content: 21 kg For use in ponds