If you are looking for a better filtration system for your home aquarium, then the Fluval 405 aquarium filter gives you excellent filtration for an aquarium holding up to 400 liters, or 100 gallons. External multi-stage filtration makes the system easy to clean and maintain, which is why the Fluval is so popular among many home aquarium owners. Fluval has put a lot of effort into designing all of their filtration systems into optimizing maintenance, use of space, and filtration power just so you can get everything you need.