Marineland Black Diamond Media Premium Activated Carbon is sized and graded for use in every Magnum. It removes unsightly discoloration and harmful organic substances and eliminates foul odors better than other carbons and charcoals.

• Removes discoloration, odors and impurities
• For sparkling clean water
• Ideal for all aquarium filters

Black Diamond Activated Carbon helps stabilize pH and remove excess chlorine where chloramines are present. Phosphate free.