I've had this guppy for a week. When we first got him home I would have sworn we had a colorful female because the belly was big. Looked up sexing livebearers and made sure he is a he. I've been keeping an eye on him and thought his belly looked smaller a couple of days ago. Today, he's been reclusive and did not eat. His belly looks huge again. Al913 can I please call on your guppy knowledge once again? I have a problem in that my QT tank is currently occupied. The only thing I can think to do is put this guy is a bucket and change water daily. I don't have an extra heater right now either. I know that would be stressful for him but I'm getting worried that he has something and the others could catch it. I have a few meds on hand too but don't know what's going on or what to do.