Quote Originally Posted by ojitos1985
how can be a lack of calcium in a 1.5 week old plant?
Are you watering with distilled water, or water purified by reverse osmosis? If you're using tap water, then I doubt it's from lack of calcium. Also, if you're using any nutrients... stop. Your plants are too young still to be fertilized. Fill out as much information in the Troubleshooting Form as you can, and you might want to post it over in the Plant Problems forum.