I'm getting a Viv and everything from a friend, he only has a red light, is it safe for a red-footed tortoise? And will it keep the Viv hot enough? Or should I buy a normal ceramic heater bulb?
I prefer Ceramic, in my experience they heat better, I don't have to worry about lighting that could hurt my tort or keep him awake, and plus I have red light for my hermits (the nocturnal kind) and in my experience they also fail more often.
I prefer not to use colored bulbs at all, but especially in the day time. I would use a ceramic heating element set on a thermostat to control the ambient day and night, and then use a low wattage flood bulb to make a basking spot if you desire one.
In the redfoot section, you will find all sorts of info on how to set them up.
RFs need warmth all over. Where you put it will largely depend on your individual enclosure and the temperature that you wich to maintain within it. There isn't a set answer for this. The are many variable to consider. In most cases a single bulb or heating element is not going to get the job done for any species.
Red lights used here at night as well for the Redfoot torts here....the ceramic heat emitter seemed to dry it up to fast...so there were extreme dry and wet moments in the beginning...so, for night temp I use red and also black light bulbs for the heat....no problems.