The eheim aquacompact 60 is a compact and innovative external filterr it is a combination of an internal and an external filter for small open aquariumsr the flow is easily adjusted using the regulating dial on top of the canisterr the unit has an integral prefilter to collect mechanical debris before it reaches the pump which protects it and prolongs the cleaning intervals a nozzle and spraybar are both included for natural surface movementr r media includedr suitable for aquariums of 30