API Quick Start 16oz / 473ml Nitrifying Bacteria to Immediately Start Freshwater & Saltwater Aquarium

Flourish is a comprehensive plant supplement for the natural freshwater aquarium. It contains a rich assortment of important microelements, trace elements, and other nutrients. These include calcium, magnesium, iron, and other important elements that have been shown to be beneficial to aquatic plants. For macro element (NPK) fertilization, use Flourish Nitrogen, Flourish Phosphorus or Flourish