I have a cacao plant growing inside a pot indoors. The leaves are turning brown! I have 2 cfl 5500k lights and also a humidifier/ heater as well. Growing medium is 1 part coco fiber, 1 part peat moss, and 1/2 part vermiculite. I also added a tspn. Of bone meal. Ph is 5.0. I will test for chlorine. Any grow/care tips for theobroma cacao? I haven't grown anything in a while and this is driving me crazy.