Why do I have to change the biorb filter cartridge so often?
The biorb service kit (filter cartridge) works like a trash can, trapping solid particles and absorbing some nitrate and phosphate from the water. After a time this will become ‘full’, and unable to absorb any more waste, and may release pollutants, causing the water quality to deteriorate. By regularly changing the biorb service kit (filter cartridge) everything it has absorbed is removed from the biOrb, just like taking your household trash can out to be collected. For optimum filtration the biorb filter cartridge should be replaced every 1-2 months. There are three different service kits to choose from. The regular biorb service kit filter, biorb no algae kit, and biorb first aid kit.
