The Marina i110 is a compact yet powerful internal filter for use with any goldfish or tropical tank up to 100 liters (25 US gallons). Complete 3-stage filtration (mechanical, chemical, biological) is provided thanks to its uniquely designed Power Cartridge (included).
The outside of the power cartridge features polyester foam to trap fine particles; while the inside chambers contain carbon to remove pollutants and odors; and zeolite to eliminate toxic ammonia for a cleaner, healthier aquarium environment and crystal clear water. The Bio-Screen, with its large surface area, is designed to promote the growth of friendly bacteria.
Key Features :

Enhances aquarium water quality
Ideal for goldfish or tropical tanks up to 100 L (25 US gal.)
Bottom positioned motor for quiet operation
Waterfall spout for continuous oxygenation
Effective 3 stage Filtration (mechanical, chemical, biological)
Bio Screen provides large surface area for growth of friendly bacteria
Easy replacement of Power Cartridge
Compact size and energy efficient
Refill Power Cartridges available (A308, sold separately),