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Granular
Activated Carbon
ESV's Granular Activated Carbon based on bituminous
coal provides the best combination of pore size, large
particle size, high surface area, low ash, and hardness
for chemically filtering aquarium water. In addition, test
results indicate no leaching of phosphates. The high
hardness level of this carbon prevents the dispersion of
particles throughout the aquarium which can occur with
softer grades of carbon. The large particle size facilitates
water movement through the carbon and helps prevent the
removal of planktonic food organisms via mechanical filtration. |
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