Theres a thread I started that provided me some useful information on that very subject. Hopefully it can help till someone else with more knowledge can respond :).
02-10-2010, 08:22 PM
Foschi Exotic Serpents
Re: fire vs. normal
Here is another thread with lots of pictures. This question is brought up alot.
This is a pic of a Sulfur (Sulfur and Fire are both Het Black Eyed Lucies) and normal. Should show you the difference between the two, but look for bright gold coloring and a head marking.