Blue Thumb Carbon Clear Activated Carbon, 5 Pounds Stainless Steel with center opening of 1

with center opening of 1

This slime coat protectant benefits fish during stress

Can be used for container water gardens and other features that contain fish or plants

To remove chlorine

Blue Thumb Carbon Clear Activated Carbon, 5 Pounds Stainless Steel with center opening of 1Blue Thumb Carbon Clear is a bituminous coal exposed to extreme heat, which "activates" the carbon giving it a powerful ability to absorb chemical pollutants. The billions of pores within the carbon act as hundreds of sponges soaking in many pond pollutants such as tannin, ammonia, nitrite, and nitrate. The result is a polished, healthy environment. Includes mesh application bag Safe to use around aquatic life Treats up to 2,000 gallons