"Cryptocoryne" This month's Aqua Journal features the Cryptocoryne species, favorite in Nature Aquarium. Learn botanical profiles of a variety of Cryptocorynes through the photos of their emerged- and submerged leaves. We also discuss how to use Cryptocorynes in our layouts and about the cultivation of the plants. In his interview, one of the world's leading researchers on the Cryptocoryne species, Dr. Niels Jacobsen, talks about his passion for the plants and his fieldwork in their natural habitats.