AMERICAN MARINE SELCON 500ML Aquarium food booster that features highly unsaturated OMEGA 3 fatty acids, Marine Lipids (200 mg/g), Stabilized Vitamin C (200 mg) and Vitamin B12 Cyanocobalamin (240 mcg). Soak any freeze-dried, frozen food or dried food to give it additional nutritional value or use directly in the tank to benefit filter-feeding invertebrates. Boosts the nutritional value of live brine shrimp. American Marine Selcon does not alter water chemistry and it does not contain Yeast, Phosphates or Nitrates. It also helps cure Head and Lateral Line Erosion / Disease. 500mL.