Ok. So I've had my tank for close to a year now. I've the clown that I need help with was my first fish. About 3 week's ago, she started doing this. All of my other fish are doing great. Including my bubble black molly having fry. I check my water every week. I've done a 25% water change two days ago. I'm at a loss on what is going on. Please be nice in the comments