A lot of aquarium and (turtle) terrarium enthusiasts wanted a control option for the pump performance for the very popular smallest JBL internal filter JBL PROCRISTAL i30 . The JBL development department has now risen to this demand and installed an infinitely variable control of the water return flow. Thus the water flow, which can be up to 200 l/h, can be individually adjusted in strength and direction. This small Goliath, which can be extended with attachable filter modules, can now be used so universally that it is perfectly suitable for all aquariums from 10-30 litres and small aqua terrariums and leaves nothing to be desired. It is also equipped with a filter sponge and activated carbon cartridge ready for connection.