Maintain optimal filtration performance with the Aquatop PCS-RCI Replacement Carbon Cartridge – 2-Pack. Designed for use with all Piscis nano aquariums (PCS-3G, PCS-5G, PCS-5GB, PCS-5GC), each cartridge is loaded with premium activated carbon to remove odors, discoloration, and impurities from your aquarium water. The easy-drop-in design makes replacement quick and mess-free — simply remove the old cartridge and insert a new one. Ideal for freshwater and saltwater systems.

Why You’ll Love It:

• 2-pack of premium activated carbon cartridges

• Compatible with PCS-3G, PCS-5G, PCS-5GB and PCS-5GC nano aquariums

• Helps remove odors, discoloration, and dissolved organics

• Easy installation — drop-in/swap cartridges

• Safe for both freshwater and saltwater setups