Hagen Marina i25 Internal Filter is a compact yet powerful internal filter that easily clips onto the Marina goldfish aquariums or can fit any other goldfish or tropical tank that is up to 6.6 US Gallon with its secure suction cups.

Features:

• Quiet
• Ideal for goldfish and tropical tanks
• Comes with one quick change Power Cartridge for mechanical, biological & chemical filtration
• Upon entering the center, the water 1st enters the zeolite chamber so toxic ammonia gets removed, it then enters the 2nd chamber which contains the carbon so that pollutants and odors get eliminated. The floating debris then gets trapped inside the cartridge, all to ensure your aquarium water is crystal clear.