I am sorry to hear about her, and I know you and Tara have been concerned about that fish for a while. I am so glad you did the post on her. It does not make it any better but to know the exact cause is a relief - mysterious tumors make you unsure of genetics, diet, etc and now you can put your mind at ease about that.
I have some pothos in my 38, and I think I'll just go ahead and pop that out of there. It must be that non-aquatic plants are too tough, though the fish have the same desire to pick at them.