The biOrb Marine Service Kit contains the required parts to maintain your Marine biOrb aquarium. The Service Kit contains a new Marine Filter Cartridge, Reef Grade Salt, tap-water conditioners, beneficial bacteria supplement and complete detailed instructions. The Marine Service Kit is suitable for all saltwater fish and other marine creatures. The unique filtration system forces the waste into the cartridge trapping the dirt. Once full the cartridge should be thrown away and replaced with a new one. Maintenance of a Marine aquarium should be carried our every four weeks. The Marine Service Kit contains the required items to maintain your Marine aquarium successfully. Maintenance couldn’t be simpler with the Marine Service Kit, simply remove and replace the Marine Filter Cartridge, mix the required amount of water and salt, remove 25% of the water from your aquarium and replace with the newly mixed saltwater. Supplied with: 1x new marine filter cartridge, 500g high quality European reef salt, 1x cleaning pad and 1 water treatment sachet. The cleaning pads are designed to remove even stubborn algae without scratching the aquarium.