Tetra StayClean Bio-Bag Cartridge Large 4pk

Tetra StayClean Bio-Bag Cartridges provide easier maintenance for healthier fish by maintaining healthy pH levels in your tank. Compatible with Bio-Bag filters, these cartridges provide 4 stages of filtration to keep your water clean and clear. Ultra-Activated carbon will remove odors and yellow discoloration to keep your aquarium looking better than ever!