Ok so I have the usual 90x45x45 cm glass terrarium with which I use a 75cm 10% UVB Repti-Glo tube. The tube is placed at the very back of the terrarium as you can see in the (pretty bad i know) photos. Shouls I acquire a new lid with less obstructions and place the fixture somewhere closer tho the centre? And is the UVB enough with all that mesh between the light and the beardie and if not should I get another one of the same tubes (10% UVB) or one of lower intensity (2-5% UVB)?