Marineland Carbon

Product Details Marineland Black Diamond Premium Activated Carbon eliminates discoloration, odors, and impurities? and keeps on doing it long after other carbons quit! For sparkling clean water. Ideal for all aquarium filters. Heat-activated bituminous coal-based Black Diamond granules are specially sized (won't damage filter impellers) and far more efficient than inferior coconut, woods, or peat-based carbons. Premium Black Diamond works as much as twice as fast as the competition. Black diamond contains less than 2% moisture.

Helpful hint: One of my secrets in this business is to mix 1 Marinland Carbon and 1 Phosguard in a large container. I then use that to fill my filter sock that I change twice in the 1st month and then monthly after that.{Many people test for phosphate and get a 0 on test? They then wonder why they have algae. The reason is that the algae eats all the phosphates available, like a refugium does. Thus by adding phosphate remover and carbon, the food source is gone and the algae starves} . .