Aquarium filter The Elite Stingray filter provides effective mechanical, chemical and biological filtration with foam and animal carb filter media inserts Includes multi-directional water flow outlet Designed to fit any type and style of aquarium. note: The filter must be completely submerged before operating, and this filter does not produce bubbles Hagen Elite Stingray 15 Underwater Aquarium Filter The ELITE STINGRAY 15 underwater filter combines elegance with silent performance. Provides effective mechanical, chemical and biological filtration. Complete with ZEO carb and foam filter media and equipped with a flip-top lid so cleaning is a breeze. Includes multi-directional water flow outlet. The Elite Stingray is designed to fit any type and style of aquarium. The ELITE STINGRAY 15 is ideal for aquariums up to 57 litres.