About This

• Each box: 42 pcs 6.1x1.3x1.3 inch / 3lbs
• Perfect for freshwater aquariums. Like aquarium filter, sumps tank and ponds. Crack into pieces to different size up to your needs
• Redusable Aquarium Filter Media: It can be cleaned and reused. Adopt protective packaging, safe and not fragile
• 100% aquarium safe non-metallic ceramic, will not leach aluminum or any heavy metal
• Remove ammonia & nitrite, vast surface area / porous internal structure results in superior efficiency