Description: Kent Marine Nitrate Sponge is a granular zeolitic medium which works by two methods.
It slowly directly adsorbs small amounts of ammonia that are released by fish and natural processes, and
it fosters anaerob...
Description: Removes organic pollutants, stains, and entrained toxic gases in marine and freshwater aquariums or ponds. Contains the finest pelletized activated bituminous coal based carbon. Pore size is in the 20 to 2,000 Angstro...