I have two palnts (I dunno what kind they are) but they are pretty nice and I would like to keep them. They were doing fine but now it looks like something was trying to eat them and also some of the leaves are now flimsy and see through and some are just dissappearing and I think they might start to die - what would cause this and how can I save the plants. For the most part they still look pretty good - just a few leaves. I have 2 bumble bee cats and 2 peacock cichlids. help please.