Ive read many threads on this, but what is the idea enclosure? I have a bp about a year and a half old. I have her in a 20L fish tank, but shes growing pretty well. I was thinking of either building or buying. would a 40 gallon be enough or should i just spend the money on a 55? If i do buy one would a uth be enough for warming or should i invest in a ceramic bulb also? I use a uvb bulb and 2uths right now and it seems to do the job fine. thank you