- Corner filter combines mechanical and biological filtration while enriching water with essential oxygen, ensuring your aquatic environment remains healthy and vibrant. It also minimizes noise from air pumps and operates with remarkable energy efficiency. - Setup and maintenance are effortless. Simply connect an airline to the unit and turn on the air pump. Cleaning is as easy as opening the box and rinsing it in tank water for quick upkeep. - Designed with the safety of your fish in mind, this filter is ideal for small species such as dwarf cichlids, guppies, and killifish. It is perfect for use in hatcheries, maternity tanks, or fry tanks, as it generates minimal currents and ensures fish cannot be sucked into the filter. - Dimensions: 4"L x 3.125"W x 3.25" to 6"H; Suitable for tanks up to 20 gallons, making it a versatile choice for various aquatic setups. - Practical applications include maintaining a stress-free environment for newborn fish in fry tanks, providing an optimal habitat for breeding fish in maternity tanks, or enhancing the well-being of small fish species in community aquariums. This corner filter stands out for its efficiency, ease of use, and safe design, making it an essential addition to any aquarium enthusiast's setup.