The filter cartridge in your biOrb® should be changed every 4-8 weeks, depending on fish load and size of aquarium. A new cartridge is supplied in the Service Kit, as well as a water preparation chemicals for carrying out a partial water change and a special cleaning pad for removing dirt and algae. Contains easy to follow step by step instructions.
Most aquariums have filters with several compartments containing different types of filter media which needs to be carefully cut, measured and changed. Changing too much or too little can result in water quality problems. In the Service Kit this has all been done for you, so you just have to replace the filter cartridge and don’t need to worry!