Bio-Pure Mega-Marine Algae Revolutionary Formulation Food For All Algae Eating Marine Fish - Mega-Marine™ Algae Is High In Freshwater Helping Your Fish Purge Salt From Their System & Digest The Food More Completely With Less Energy - Expect Faster Growth & More Vibrant Colors Hikari's 3 Step Sterilization process assures unequalled product quality. Free of parasites, harmful bacteria and foul odor, Bio-Pure frozen diets are another example of Hikari's product quality commitment. Packed in pure water and available in our "no touch" cube packs, Bio-Pure frozen foods provide maximum nutrition with minimum mess.