Hygrophila species

Family: Acanthaceae Common Name: Hygro Maximum Height: 12 inches to 18 inches Leaf Size: ½ inch to 1 inch Stem Thickness: ¼ inch to 3/8 inch Light: Any Temperature: 60 to 80 degrees Fahrenheit pH: 5.5 to 8.0 Origin: Southeast Asia Water Hardness: Any Nutrients: Any Relative Growth  Speed: Fast   There are a number of different hydro species common in the hobby, because all of them are excellent aquarium plants. They are available in a range of sizes and shapes of the leaf, and colors range from different shades of green and brown to shades of red and pink. All of the species have pretty much the same requirements, in that they will all grow well in a wide range of water and light conditions.