RealPlus 100pcs 3.8" Long Large Aquarium Filter Media, Ceramic Bio Media Blocks for Sump Tank Pond Fish Tank
Feature
Size of each block: 3.8" x 1.18" x 1.18"
Large Surface Area: covered with thousands of porous tiny holes
Provides large surface area for bio filtration
Dual Purpose Filtration: Serves mechanical filtration to catch fine particles and biological filtration
Effectively absorbs fish waste and debris
Crack into pieces to any size needed
Great for used in freshwater aquariums, planted aquariums, sumps and ponds
Package
100 x Aquarium Filter Media