The Aqua Nova Double Sponge Filter is a powerful, air-operated sponge filter with two filter sponges, designed for effective mechanical and biological filtration in freshwater tanks up to 120 - 200 liters (2 sizes available). Ideal for breeding setups, shrimp tanks, and nano aquariums, it offers reliable and gentle filtration without electrical components in the water. The filter provides ample surface area for beneficial bacteria colonization. These dual sponges efficiently remove suspended particles, helping maintain crystal-clear water and biological balance. The filter operates quietly using a standard aquarium air pump (not included). Aqua Nova Double Sponge Filter+ available in two szies+ NSF-120 L: suitable for tanks up to approx. 120 liters, 2 sponges, each 105 cm, total height (with tube): approx. 15 cm+ NSF-200 L: suitable for tanks up to approx. 200 liters, 2 sponges, each 156 cm, total height (with tube): approx. 23 cm+ provides both mechanical and biological filtrati