Plant doctors needed. Well I recently acquired a not so nice plant from a friend. It was healthy looking when I got it, but lately it's been developing brown spots all over it. Looks like chicken pox or something. Sorry for the shitty pics, it's the best I could do. This is what every leaf looks like, polka-dotted with brown spots. How do I fix it? I will take a couple more pics if need be.
Patches of necrosis in seemingly random spots is usually from Phosphorus deficiency. From the color of the leaves, you may have a pH problem that is locking out P and some of other nutrients. Test the soil pH asap.