Stroker,
I don't mean to sound harsh, but your setup is completely wrong.
You said that:
"The setup that I have for him right now is a 100 gallon repatarium with a ReptiSun 5.0 tube flourescent and a Powersun UV Mercury Vapor Lamp."
Do you know how old your baby panther is? He seems a little too small for a 100 gallon reptarium with a powersun. I also think that at that age they are a little too young to be sold, and husbandry mistakes could mean trouble for him. If I had to guess, I would say that your baby is no more than 4 weeks old. You are taking a big risk purchasing at that age, especially if this is your first panther. Ideally, you should start out with a sub-adult, since they can tolerate mistakes a bit better.
The reason why the 100 gallon reptarium is not a good idea, is because he will have a hard time finding food in such a large space. Our babies are housed in a 24" x 16"x"16 small cage, so that they are able to hunt easily.
The lowest watt powersun mercury vapor bulb is 100 watts, and that bulb gets way too hot for a baby panther. I would not be surprised if that bulb was capable of injuring the animal. If there is a lower wattage powersun, then disregard this paragraph.
Please read the Setup Guide on our website. You can find it at http://www.screameleons.com. There is a table that list the right sized cage for the various ages of panthers. You should get him a new cage, heat bulb ASAP. The reptisun 5.0 is perfect.

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Farrah & Vincent
Email: sales@screameleons.com
Phone: (571) 437-0642
Website: http://www.screameleons.com
Chameleon Info & Sale