External filters rely on siphon action when priming, so they cannot be positioned above your aquarium. Without gravity assisting the siphon, water flow is disrupted, and the filter may not function correctly.

For the best results, always place your external filter underneath your aquarium. This ensures smooth water flow and easier maintenance.

If you must position it beside your tank, ensure the hoses are cut to size. They should run straight without kinks or looped bends, as these can restrict flow and strain the pump.

Explore our range of external filters for hassle-free installation.