Phew. I was really worried. But I'm in the middle of the treatment, and will probably end up extending it a little bit just to be safe. I'm not going to add anything more for at LEAST 2 weeks. I was considering getting some pygmy cories when I caught the finrot. I'm pretty glad I didn't add them before realizing what was going on! (Oh, and my other platy was hiding. I'll try and get another picture of him later, but his tail isn't nearly so bad.)