Perfect filter for delicate fish or shrimp the 55l fluval is a world leader in quality aquatic productsr the nano filter from fluval provides optimal water filtration system for small aquatic environments it is a completely modular filter can quickly be assembled and disassembled for easy installation and maintenancer comes complete with 3 suction cups for secure in tank installationr ensures proper oxygenation for clear water and a healthy environmentr adjustable flow output with an at