To keep your biOrb aquarium in top condition, the Service Kit x3 plus Water Optimiser pack provides everything you need for basic maintenance. This pack includes three service kits, three cleaning pads, a bottle of water optimiser, and instructions. The quick-change filter cartridges offer both mechanical and chemical filtration, making it easy to maintain clean water with just a few simple twists every 4-6 weeks. The essential water treatment packets, such as the biOrb Water Conditioner and Biological Booster, effectively remove harmful chemicals, heavy metals, and organic sludge from your aquarium. To ensure that your acrylic remains shiny and clean, the included cleaning pads have rough and smooth sides to easily remove algae spots and dirt from inside your biOrb aquarium. Additionally, the beneficial water optimiser improves biological filtration, removes impurities, and promotes the well-being of your fish. With its active bacterial cultures and minerals, this natural and safe solution helps keep your aquarium crystal clear.