Hi I really need some help first time grower. The leaves on my plant are turning yellow from the bottom up, and there are black spots on the leaves that i CAN take off with my nails. Does anyone know what this is? and is there a low budget way to help this issue? here is a photo.
edit cant to CAN
![20140715_122406.jpg](https://www.420magazine.com/gallery/data/500/20140715_122406.jpg)
edit cant to CAN