BiOrb Service Kit TWELVE PACK 12 BiOrb Service Kits Suitable for ALL BiOrb, BiUbe, BiOrb FLOW and BiOrb Life aquariums The kit contains everything you will need to service your aquarium, including conditioners to remove harmful chlorine from your tap water The BiOrb Service Kits also contain a cleaning pad The BiOrb filter cartridge works like a waste bin, trapping dirt, and once full it should be thrown away and replaced with a new one