The Tetra EX 500 Plus external filter complete set ensures excellent water quality for fish in aquariums with a volume of up to 100 liters. All filter materials are included, so you can start using the filter immediately. In several chambers, the water is cleaned reliably and efficiently with different filter materials by breaking down excess nutrients. This way, you get crystal clear and fish-friendly water for a fascinating aquarium experience. In addition, the Tetra EX 500 Plus External Filter Complete Set is particularly powerful with its 38% higher flow rate (compared to the predecessor model Tetra EX 400 Plus External Filter Complete Set), while being energy-efficient and quiet.Tetra External Filter Complete Kit EX 500 Plus+ immediate start-up due to extensive scope of delivery, including all filter materials+ cCreates crystal clear and fish-friendly water for a fascinating aquarium experience+ exceptionally powerful, energy efficient and quiet+ with priming aid for quick start o