So I got a 100*50*50cm vivarium for my soon to arrive Pygmy dragons(2). Just wondering your thoughts on if a 5 or 10 UVB bulb. At the moment the hot end is 32 (40 in highest basking spot) and 25 at cool end( I'm hoping a 25 watt UVB will make up the difference, let me know wat u think) I'm just wondering if a 5 or 10 UVB for my UVB let me know wat you reckon.