Specifications: ‣ Product Type: Nitrate Removal Sponge ‣ Size: Large ‣ Active Ingredients: Nitrate-reducing bacteria embedded in foam ‣ Compatibility: Fits Juwel filter systems (Large model) Key Features: ‣ Nitrate Reduction: Helps control nitrate levels for healthier water conditions. ‣ Prevents Algae: Lowers nitrate levels to reduce the likelihood of algae blooms. ‣ Long-Lasting Media: Effective for extended periods, supporting easy maintenance.