The sera siporax Nitrate-minus Professional is a high-performance filter medium specifically designed for the biological breakdown of nitrate, nitrite, and ammonium in aquariums. The innovative combination of a sintered glass tube and a biopolymer ball optimizes denitrification, leading to a significant improvement in water quality. The biopolymer ball serves as a carbon source for nitrate-reducing bacteria, thus enhancing the efficiency of the filter. The product's design not only increases biological filtration performance but also improves water flow, optimizing substance transport within the filter. This results in a longer lifespan for the filter and reduces the need for frequent water changes, especially in larger or heavily stocked aquariums. The product is also compatible with other siporax products, increasing flexibility and adaptability in use.

• High-performance filter medium for effective biological nitrate reduction
• Optimized denitrification through specialized biopolymer ball technology
• Improved water flow for more efficient substance transport
• Reduction of water change frequency in aquariums.