Hello there,
I Got my Elephant Ear a year ago, while it grew immensely during that period the leaves were never looking up and there were always yellow spots on. I looked for answers and according to those changed its spot, soil, watering habits, used a pebble tray to moisturize, looked for spider mytes and used vinegar & Water on the back of the leaves and also changed fertilizer but never found the problem. It is currently looking at a southwest facing window and i do not know what should i do.