I hope I'm in the correct topic for my question. This is my first post on this forum. I have a fresh water Oceanic aquarium. I've owned it for over 10 years. It came with a 48" T8 light fixture. I arrived home today to the smell of something burning. I found it to be the wiring between the ballast and the light fixture. The wire was actually melting in a about a 3 inch area. The light was turned off at the time. I unplugged it of course and the ballast was extremely hot. It was still kind of hot an hour later. Can someone explain to me why this could happen? Can I just replace the ballast or should I trash the whole light fixture? Thanks.