Natural Aquarium Vital 16 oz

Natural Aquarium Vital by Marc Weiss Aquarium Products is a natural formulation that enhances the ability of plants and microbes to obtain nutrients and energy from water and light. Natural Aquarium Vital, a liquid, time-released CO2 producer, is quite different than other chemical formulas on the market. There's no need for CO2 cylinders, controllers, or monitoring devices. The carbon cycle is maintained as in nature. 16 oz supplements 50 gallons for up to 3 months.