I have a Voodoo Lily, and I am not doing very good with it so far. It was doing fine until red spiders got it and i tried to wipe them off. i did finally get rid of them. But now the leaves are turning yellow like it is getting to much water. However sometimes it gets really limp like it not getting enough. so in this case so far I have been darned if I do and darned if I don't. Can anyone tell me how to properly care for this thing??