Sicce Shark Pro Nano 250 Internal FilterShark PRO NANO Having adequate filters for a small size aquarium is crucial to keep the livestock healthy. With the new SHARK PRO NANO we are offering the best compact option with EXTRA flow and MAX filtration capacity for small aquariums. Two models simple, linear and sleek design for easy hiding in any corner. They can be upgraded with add on cartridges taking few space but assuring an adeguate filtering capacity for crystal water thanks to a multi