Just wanted to let you all know that in spite of our effort to save Oscar, he passed away on 4/11/10. I want to let you know that we purchased a testing kit for our water and have tested all four tanks for their p.h., amonia, nitrites, and nitrate levels. We will not be adding any more fish to them until we get them regulated to safe levels. We also purchased Prime which was highly recomended by many of you and treated all tanks with it. I want to thank all of you for caring enough to share your expertise and knowlege. It's nice to know that there are other people out there who care about their fish as much as we do. We just need to make sure that we are educated more about other conditions that factor into keeping healthy fish such as the water that they live in. Thanks again for everything!