Crinum calamistratum is a very graceful bulbous plant with dark-green, very narrow leaves. It forms smaller bulbs than the other Crinum species, and demands more light. In the aquarium plants that are thriving form a number of small bulbs. It is not eaten by herbivorous fish. It can also be used in brackish aquariums with low salt concentrations. [TROPICA]
i have a couple of these plants myself. they are slow growers but the growth rate will increase with a little bit more light and ofcourse some Excel. Mine do well, my Distichodus Affinis and Uaru leave it alone. They will tear up anubias though!