Eheim Substrat Pro 250ml Seachem The nauplii have a very

The nauplii have a very good buoyancy

The intuitive single on/off button allows for easy control

225 micron thin-mesh aquarium filter bags are perfect for new setups and after heavy maintenance or whenever there is a lot of particulate matter in the water

calcium montmorillonite clay to simulate the natural uptake of mineral particles as well as to bind and

Eheim Substrat Pro 250ml Seachem The nauplii have a veryEheim Substrat Pro 250ml with a surface area of 450sqm litre. Use in filters, sumps and canisters. pH Neutral 450sqm litre 4x faster rate of decomposition of toxins Bacteria stick better to surface with complex pore system Optimal sites for bacteria colonisation Washable and reusable i. e. prolonged usage up to 50% more EHEIM SUBSTRATpro Optimised bio filter medium with perfect volume usage, long intervals between cleaning and top decomposition