Ista Large Bio-Sponge Filter for Aquariums

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