Can anyone help me identify this fungus looking spot on my Iguana's tail? We rescued him from a person who wasn't taking very good care of it and we were wanting to know what to expect before we took him to a vet. The dead parts of it are starting to fall off and I can see the green coming back. It doesn't appear to be spreading (yet).
Thanks in advance!

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2.3 Normal Adult Ball Pythons
5.5 Normal Baby Ball Pythons
1.1 Pastel Ball Pythons
1.1 Het Orange Ghost Ball Pythons
1.0 Albino Ball Python
0.2 Het Albino Ball Pythons
1.0 Poss Het Pied Ball Python
0.2 Het Pied Ball Pythons
1.0 Cinnamon Ball Python
1.0 Butter Ball Python
1.1 Bearded Dragons

