Crinums are members of the narcissus family and have a bulb for storing nutrients. The deeply crinkled leaves of the Crinum calamistratum can grow up to 80–100 cm in length! Depending on the size of your aquarium, the upper leaf blades may produce flower stalks. They do not require particularly strong light, but gentle water movement, such as occurs near an outflow, promotes growth. Crinum calamistratum is best used on its own. This gives the most attractive results.