Bio Balls: The 3 Best Ways To Increase Biological Filtration
ISTA - Filter Material Bio Ball 35pcs
Arowana Avenue - JBL Micromec would be a capable assistant in your filtration as it's able to biologically breakdown the pollutants in both fresh and saltwater aquariums. It creates intensive water clarification
JBL All Water Types Aquarium Filter Bio Balls for sale | eBay