API - CO2 Booster - 16 fl. oz. (473 ml)DESCRIPTION Adds essential liquid carbon for planted aquariums Benefits: A vibrant, healthy planted aquarium Follow API Easy Care Guide and use CO2 BOOSTER when: Properly caring for aquarium plants Aquatic plants also require carbon to fuel the photosynthetic process and turn light energy and nutrients into new plant growth. Carbon deficiency is one of the leading causes of poor plant growth in aquariums. CO2 BOOSTER adds essential carbon in a form