Feature
Color: Blue
Size: 6.2" x 1.4" x 1.4"
Aquarium filter media serves mechanical and biological filtration
Remove ammonia & nitrite and stabilize PH value
Hollow design to increase surface area
Porous surface good for bacteria to colonize
Enhance water permeability and adsorption capacity
100% aquarium safe non-metallic ceramic
For freshwater, pond and saltwater fish tank use
Package includes 56 packs ceramic filter blocks.