Marineland Premium Activated Carbon
Premium Activated Carbon eliminates discoloration, odors, and
impurities from aquarium water...and keeps on doing it long after other carbons quit.
Heat-activated bituminous coal-based BLACK DIAMOND granules are
specially sized and far more efficient than inferior coconut, wood or
peat-based carbons. And now, new and improved Black Diamond works twice
as fast. Place inside nylon bag for best results, or use a reactor, which increases the ability of the carbon to clean the water of impurities
- 10, 30, 40 oz sizes