I have two of these plants and, while they seem to be doing alright, I'd like to know how to care for them optimally, but I have no idea what it is. I've attached an image. The leaves are waxy and tiny with multiple primary veins. It does seem to creep, but the creepers always start growing back upwards. There aren't any now, but it sends off these little green, flexible new stems that first look a bit like caterpillars and then start to grow leaves. Help!