Hi. I have a crinum zeylanicum which is potted in almost pure sand and it has not been fertilized in about 6 months. I'm not sure if the leaves are showing virus symptoms or nutrient deficiency. Can you guys please have a look at the pics attached to the following link and see what you think? There are 12 pics of the crinum in question. http://flic.kr/p/e9Vi4J/ Thanks Rahul