Offered in a range of convenient sizes, Diamond Filtration Media works faster, longer, better. Performance tested and certified effective by Marineland Labs, each has been compared against the leading brands of chemical filtration media. BLACK DIAMOND Premium Activated Carbon eliminates discoloration, odors, and impurities...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. WHITE DIAMOND Ammonia-Neutralizing Crystals is ideal for all freshwater aquariums and ponds. White Diamond removes up to 4 times more deadly ammonia to keep water clean and fish-safe. It protects against sudden ammonia "spikes" and helps control the presence of ammonia...especially during the break-in period.

DIAMOND BLEND® Premium Activated Carbon and Ammonia-Neutralizing Crystals is ideal for new aquariums. This special formulation of new faster-acting Black Diamond and super-effective White Diamond cleans and conditions aquarium water, ridding it of dissolved organic waste and odors as it removes toxic ammonia and chloramines. Outperforms other blends by as much as 4 to 1. DIAMOND FILTRATION MEDIA Product Name Product Description Black Diamond Available in 440mL, 900mL, 1.87L, 3.65L sizes White Diamond Available in 440mL, 900mL, 187L sizes Diamond Blend Available in 440mL, 900mL, 1.87L sizes.