The AQUAEL Ultramax BT is a state-of-the-art external filter, combining advanced mechanical and biological filtration with Bluetooth control technology. The filter can be fully operated from a smartphone via the AQUAEL BT app, including for flow control, different flow modes, night reduction and the feeding function. This makes operating the filter more convenient than ever before. Designed for aquariums ranging from 100 to 750 litres, the AQUAEL Ultramax BT boasts an impressive 10.1-litre media capacity (including pre-filter), delivering exceptional cleaning performance - perfect for even the most densely populated tanks.The integrated pre-filter unit in the lid helps trap coarse dirt early on. This pre-filter can be cleaned quickly without dismantling the entire filter head, which is a significant advantage for aquarists who prefer long maintenance intervals. With stepless power control of up to 2,200 litres per hour, an energy-efficient modern motor with a power consumption of only