I don't think anyone meant any offense in their posts...discus are just very difficult fish to keep. I've had many types of tanks over the years and I've wanted discus for a long time, but I'm a little scared to get them because they are so sensitive. I truly think that people's replies were meant more out of concern for you then saying that you are an inadequate fishkeeper. Personally, I haven't gotten any discus yet because I worry that I will kill them!