The biOrb Service Kit filter cartridge works like a waste bin, trapping dirt, once full it should be thrown away and replaced with a new one. This should be done every 1-2 months depending on the size of the aquarium and the number of fish kept.
A natural substrate in the cartridge polishes the water and removes impurities helping to keep the water clear between changes it has an active life of 8 weeks.
Simply unclip the old cartridge and fit a new one every 4-8 weeks, just like taking out the garbage. Service Kit eliminates the need to cut filter foam, deal with messy carbon and measure out doses of water treatment - simple.
Supplied in packs containing: