Uvb

[murrindindi]

Hi, as already stated, when properly supported (as in) sufficient temps, humidity, a whole prey diet etc, they can live long, healthy and productive lives without exposure to either natural or artificial UVB. There`s no evidence to suggest it`s harmful. If using artificial UVB bulbs/tubes you must follow the manufacturers instructions.
The tubes you mention need to be within a maximum of 25cm (10inches) fom the surface of the animal/s when basking.