This is a picture of my 18 day old Big Bang seeldling. I think it\'s just the water that i\'ve used to spray and keep up humidity, but I do not have the experience to tell. I don\'t think it\'s salt bulidup since it grows as you would expect it to. If anyone can answer this I would be ever thanfull! I just need to know if its desease or just calcio from my spraybottle :) Peace