Seachem Flourish Excel, 2 Liter - 458
Flourish Excel is a simple source of carbon for aiding growth of aquatic plants. Designed to make plant-keeping easier without carbon dioxide injection. Use it alone, or if you choose, with carbon dioxide injection. Keeps iron in a reduced state thats easily utilized by plants. 1 ml treats 10 gallons. Recommended for use on a daily to every other day basis.