The new JBL ProFlora CO₂ systems meet all the wishes of aquarium enthusiasts and the specialist trade: 1. Finally a CO₂ system which can be converted from disposable cylinders (u-system) to refillable cylinders (m-system) in just seconds. So, in the holiday season, aquarium enthusiasts can quickly set up disposable reserve cylinders for whoever is looking after their aquarium while they are away. 2. Extendable CO₂ diffuser JBL Taifun: whenever more CO₂ is needed, whether due to denser planting, a larger aquarium or because a lower pH level is required: the JBL Taifun can be easily extended at very little cost. So there’s simply no need to buy a new bigger diffuser. 3. Complete solution: liquid fertilizer (JBL Ferropol) and daily fertilizer (JBL Ferropol 24) are already included with any JBL ProFlora CO₂ u or m system purchased. CO₂ alone is not sufficient for luxuriant plant growth. 4. New pressure regulator JBL ProFlora u001/m001: in addition to the new feature that this pressure regulator now fits disposable as well as refillable cylinders (only dismantle or remove one locking nut), the pre-set operating pressure can also now be adjusted if required. A brochure is available to accompany the new JBL ProFlora CO₂ system, with illustrations and answers to all questions on the subject of fertilizers/CO₂. In developing this system, JBL has succeeded in making the subject of CO₂-fertilizing a whole lot simpler and more professional!