ESV AQUARIUM PRODUCTS GRANULAR ACTIVATED CARBON Size:14 OZ Some pumps shut off completely

Some pumps shut off completely when they have a temperature issue

While a few prefer the natural look the sun and sky provide on natural reefs

Smart Stir has a built-in rechargeable lithium battery which reduces waste batteries

Filter media are an essential part of maintaining good water quality in an aquarium

ESV AQUARIUM PRODUCTS GRANULAR ACTIVATED CARBON Size:14 OZ Some pumps shut off completelyGranular Activated Carbon Our Granular Activated Carbon based on bituminous coal provides the best combination of pore size, particle size, high surface area, low ash, and hardness for chemically filtering aquarium water. In addition, test results indicate no leaching of phosphate. The high hardness level of this carbon prevents the dispersion of particles throughout the aquarium, which is more likely to occur with softer grades of carbon. Our