A nitrifying biofilm will not function properly without elemental sulfur being produced and reused. HS is produced constantly and used by autotrophic denitrification everywhere in the aquarium. Elemental sulfur production and consumption is an essential part of the normal sulfur cycle and the nitrogen cycle. Using produced elemental sulfur is the basic process of BADES. Elemental sulfur production and consumption takes place in all aerobic remineralization filters.
Adding some elemental sulfur to the substrate for growing a nitrifying biofilm will increase the natural nitrate export rate already present. No need for a deep sand bed promoting anaerobic remineralization and sulfate reduction.
Adding some elemental sulfur to the substrate for growing a nitrifying biofilm will increase the natural nitrate export rate already present. No need for a deep sand bed promoting anaerobic remineralization and sulfate reduction.