Alder Cones promotes breeding and healing in shrimps. They’re known to have anti-fungal properties. Alder Cones may also provide food to your shrimps and stimulates breeding. Having Alder Cones on your tank, may also relieve stress on your shrimp. They’re going to grow a biofilm on them that your shrimps will like to eat. Reduces the danger of bacterial and fungal outbreaks. Is helping to regulate water pH.