This activated carbon works faster, better, and longer than the rest. Eliminates foul odors, unsightly discoloration, and harmful organic substances. Heat-activated bituminous coal-based granules are specially sized and far more efficient than coconut, wood, or peat-based carbons. Contains less than 2% moisture. Use with a media bag. For freshwater or marine applications.

Note: Always rinse carbon before use to remove excess carbon dust. Black diamond crackles and gets warm as it is being rinsed. This is normal; it's letting you know it's ready to go to work.

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