Internal filters from AQUAEL are available in various designs and sizes for very small aquariums up to large aquariums with over 400 litres. An internal filter has some advantages over an external filter, especially in terms of safety, but also some disadvantages, such as a too small filter volume and thus insufficient cleaning performance. AQUAEL Internal Filters have some features that other internal filters do not have. With AQUAEL Turbo, for example, the filter volume can be expanded with additional modules. The modules can be filled individually. The AQUAEL Fan Filter UV has a small but powerful UV-C LED integrated in the pump chamber as standard. This ensures an even better cleaning performance. Nowadays, an internal filter must also be energy-saving and very quiet in operation. AQUAEL Internal Filters fulfil both criteria with ease.